Ultimately, I believe the base problem here lies with people unable to accept and embrace change.

I don't know if that's the case. Terminator 2 was clearly better than Terminator 1, and everyone acknowledges that. It would be possible for every new Terminator to be better than the earlier one. But Terminator 2 is still the best one. And at least T1 was good, though not as good as T2. But everything that came after T2 more or less sucks. There are occasional moments of enjoyment, but mostly it's meh.

Nolan's new Batman was also extremely well received.

So I don't think people judge games/movies/reincarnations/relaunches/remakes harshly because they're stuck in some kind of nostalgia. I think it's just objectively true that it's hard to improve, or match, something great. I agree sometimes fans may be too blind to see the value of the new, as for example when X-Men fans were crying foul because no one was wearing colorful spandex in the first X-Men movie. But I've been a fan of the X-Men since I was a kid, and I thought it was a great idea, much more realistic, I saw that it would appeal to people who don't like comics, etc.

I haven't seen the Baywatch movie yet, but I don't expect it to be anything like the series: the trailer made it obvious to me that it's just a comedy. But I don't like crass humor. It's lazy and uninspired. So if critics throw rotten tomatoes at it for that, I'm with them. Crass humor can be funny, inspired, and intelligent, like with Family Guy, Southpark, There's something about Mary, whatever - but it rarely is in these forgettable movies Hollywood puts out all the time.