Unless the people who are deciding who to sample are purposefully only sampling those that seem happy. I also read here about someone who repeatedly walked by the questioners over a longer trip they weren't enjoying so much and were never asked to answer the questions. Then on a couple occasions when they saw the questioners put on a beaming face, and were indeed asked to respond to the survey. - of course this could just be absolutely random, its one persons' experience. But there is no reason to assume that their sample selection is more accurate or representative without knowing how they are actually selecting subjects. I also remember you trying to use a quote where Iger said that the majority of people who used Magic bands rated the experience as positive also meant that they rated FP+ as positive, which is not accurate at all.
I can tell you that over the last 4 years this was exactly our experience. I have always thought FP+ probably works best at the busiest times of the year, about, 1/3rd to 1/4th of the year. Though I am seeing some reports that this might not be true, but I have never been on peak days (other than presidents day weekend once) so I can't compare their experiences. They just might be dealing with larger crowds and it might be less FP+'s fault than they think, just like when people go in very low crowds and say FP+ is great because they could do so much, its probably not FP+'s fault either. But for us, in February and May, we could get to the park after RD, 10 or even 11, shortly after arrival (not even necessarily a bullet to TSMM either !!!) pull an FP for an hour or two later. And in the other parks this was far more obvious, far greater FP availability, shorter SB wait times. NO need to rush around the parks pulling FPs, just casually go with the flow and get a crap ton done. No phones, no kiosks, no preplanning, shorter SB lines. Wake up and pick a park, head there, tour, SB some stuff, pick up FPs as you go, adjust to the crowds. Park feels too crowded ? Hop to another one, casually walk around, jump in shorter SB lines, pick up FPs as you go.
On the upper part... I agree.
On the lower part.... I 100% agree. We are preparing for our 20th year of Disney this year... You've hit the savvy Disney traveler perfectly.