When we went to Disney in late 2019, smugglers run only had standby, no FastPass at all yet, no boarding groups, just standby.
RotR has standby and they have the paid LL.
Overall it isn't that big of a shift, at least for new rides, so I don't think this is a good example. I, personally, would have preferred a paid LL back when we did smugglers over standing in that line for an hour. If I were to consider paying myself as an hourly amount based on what I make working, it is far more valuable to me pay $15 to get on in five minutes than what an hour would "cost" me standing in line. I don't think there is any Disney magic to standing in line for an hour.
If I had any issue with the new system is that it further creates a class system in rides where those that can afford more get more with less time commitment, but even that is hard to argue in a forum filled with
DVC members that pay a significant amount to get luxury accommodations while many that go to Disney stay at value or off-site to keep costs down. So from that element, class systems based on what you can afford to pay have been around at Disney for decades. Pay more for a hotel within walking distance to the parks, or to get early magic hours, or whatever. LL or
Genie+ is just another aspect of it.
Again, don't have to agree that any of that should exist, but the hundred threads about the magic being gone don't seem to cover that anything they are bringing up as examples have been around at WDW for decades, they are just used to the other things.