You could have stopped right there, the rest of your post was pretty useless because of this.
Though, the bit you noted about the fact that more attractions have FP available ... only makes this worse.
Your data sets are completely incomparable.
Your overall claim, certainly valid and debatable. As a "super user" I was able to "super use" FP+ just as I was able to do so with Legacy FP.
But I go in early May, when crowds are lower, and there is pretty good same day availability. Even under Legacy FP it was pretty common for us to pull and FP, ride SB, and then ride again on the FP we had just pulled, then grab another FP and go ride another close ride SB, come back and ride FP again. Space was great for this, as was BTMRR, and well, a bunch of rides.
There is no clear answer on FP+, its personal preference. Lots of people make ridiculous statements about why this is superior, and lots of people make dumb statements about why this is the end of the world.
There are some things we can say with pretty solid confidence though: FP+ has increased the SB times for many rides.
FP+ requires much more planning than Legacy did. (And those who say "you don't have to plan ... the penalty for not planning has increased considerably)
FP+ adds another level of complication to a system, and system's complications don't grow linearly as you add levels, staggered chronologically, they grow exponentially. We have already seen quite a few cases of Booking a year, 11 months etc out. Then ADRs at 180. Sometimes recalculate a few months out due to discount release. Then Recalculate again at 60 days. TRY to match ADRs and FP+ reservations. Then recalculate again a weekish out when weather forecasts are a getting accurate. Then recalculate each day as you see how people are feeling how the forecast changes etc.
That's a Lot more work than, book at 12 or 11 months, book adrs at 180, then watch the weather and how you feel day to day.
FP+ means many people (quite a few reports here) mean people are "doing less" in the parks. Even though its possible to do as much, given the right conditions, we have had dozens of reports of people doing less. Now, some people have liked this, they have even praised their Trips saying things like 'It was great to slow it down, and have more family and resort time' ... awesome, glad they enjoyed it. But for many people, They would rather to a much less expensive resort (and often better resort) if they want resort and family time.
FP+ and MM+ are advertised to guests as something to "enhance the magic" but to investors, and the business class, they are told the aim of this is to squeeze more money out of guests, and to decrease the costs on Disney. Its crowd management, you get less from Disney, and spend more, all the while having them convince you, you love it. And heck, maybe you actually do.
FP+ HAS ADVANTAGES, shocker, even for people who don't like it. Arrival day is great with FP+. You can (assuming you get them at your 60) book FPs later in the afternoon or evening.
Most of the other "Advantages" are really trade offs depending on style and preferences:
Being able to "sleep in" and still "get FPs" sure, but now the person who used to be able to wake up early and get FPs, and continue to pull FPs, isn't getting them.
"Not having to run" - biggest joke of a comment on this board. You didn't have to run. We certainly never did (not even on presidents weekend), we just pulled FPs as we walked around the park in a logical fashion. Did we ever send someone over to an attraction to pull FPs while other people waited in SB or grabbed a bit to eat ... sure. But people are still doing this, running over to Kiosks, except now they are standing in line when they get there, and trying to sort through and figure out whats available instead of just looking at the attraction they are near and going, ok, I will grab that. On top of that, anyone who has travelled with a larger group, with differences in ride preference and age and height etc ... this has created a whole new type of "runner" The person who creates insane spreadsheets trying to figure out how to split FP+s and where to walk around the park to try and match up with those and then hopes to god they can actually book those at those times at day 60 and then plays magic man when, of course, it doesn't work out that way. (This also ignores the idea that if you like kiosks over FP machines at attractions, they could have just offered Any FP you wanted at any FP distribution center, much like the kiosks they installed, only ... more of them)
Knowing you have 3 great rides .... ok, well, sort of. Except with Tiers, you are often getting 1 great ride, and 2 rides you don't (or didn't, you might now) need FP for. And you might be trading "knowing" you have 3 rides, for actually being able to ride more rides, and going with the flow.
Locking in / Flexibility - This is again a wash for the most part. The idea of the system is to make you lock in. But many people have noted they have found lots of same day flexibility, and that's an "improvement", except, its not. If you have same day availability at any given time with FP+, you could have or would have with legacy FP. The one thing that is true however is that, if you have locked in, and your plans change the night before or the day before, the availability of FPs for the day you want to change is now subject to whatever is left over from 60 days of others preplanning. Whereas under the old system, every day at park open the FP system was reset, and everyone had equal opportunity to get what they wanted, when they wanted. Perhaps the old system was in fact, more flexible.
Bleh, that's just a few thoughts, its late