I just don't understand the fixation on standby times, and totally ignoring the fact that you didn't need to ride standby in the past. Just back from 10 days at WDW and I can tell you the time we spent standing in lines, for the same exact rides, was easily double or triple what we are used to. FP+ resolved that in the past. We FP'd pretty much every ride we used to do, except for early morning when standby used to be low. I don't understand why people refuse(d) to use the system when it was a night and day difference than how things are now. Makes me think of the phrase... "You can lead a horse to water, but you can't make him drink"
The parks weren't any busier this trip than when we visited in 2018 and 2016, same time of year, but the wait in lines was so much longer. Also, it's not about the lack of shows either, at least not in the early morning. Shows weren't open early morning before either. In the afternoon and evenings sure the shows would help but wouldn't reduce the waits back to FP wait times.
FP used to do so many good things... There wasn't the crush of humanity at rope drop because you could have headliners already booked for later in the morning or later in the day. This caused less people to be there at rope drop, because they actually got some rest and came later. This allowed for standby wait times, especially the headliners, to build MUCH more slowly than they do now. As things are now, you get ONE headliner in at rope drop and by the time you are done with that, all the headliners have very long lines. This never used to be the case when FP was around. Standby lines stayed low for a good 1 to 1.5 hours after open. So, FP used to do good things for standby in the early mornings as well.
Dan