I can't remember if it was you or another poster who mentioned this earlier, but this is predominantly a WDW forum and it is logical that most people here will be evaluating this park using the same lens they have developed to evaluate Disney's parks. That, hopefully, doesn't result in blind tribalism, but it makes it hard to people to just suspend their attention to all the details of theme park design and operation that occupy all the other threads on this forum that, I would note, also involve more critique than praise of Disney. I feel I need to underline this last aspect as the point is not that Disney does everything perfectly or better than Universal.
The other issue is that I think the Epic boosters probably overshot the mark in hyping up this park prior to opening. It is notable that even the boosters have toned down the hyperbole around this being a game changer and how spectacular individual elements such as the Chronos or Celestial Park are going to be now that the park is essentially open. This is where I think it kind of crosses over with the first issue: there has been a lot of build-up online about this being a park that would equal and likely beat Disney at its own game. When people apply the same standards, though, and find aspects wanting, the response has been "no-one cares about that" or "Universal has a different approach to theme park design." So, it's hard not to feel like it has missed some kind of mark that I am not clear Universal ever set for themselves.
I think, in general, there would be less of a sense that people are being negative about the park if the pre-opening discussion was more clearly grounded in was announced and shown in the concept art.