I have no problem criticising and looking at the parks with a critical eye sometimes. It doesn't mean I don't enjoy them or have a good time.
Everything in this life has positive and negative aspects to it. The people who say "I just have a good time and don't notice anything bad" are no different than people who only see the negative. I think the former outweigh the latter however.
When you go to Wizarding World and are blown away, and then realize the newest offerings at WDW are a coaster with a broken animatronic and a so-so dark ride with Nemo, how do you NOT realize that WDW could be so much beter?
Yes, go and have fun. Yes, don't complain about every little piece of chipped paint. But Yes, absolutely yes, voice your concerns that WDW is not living up to it's magnificent legacy.