But removing 3D doesn't really change that statement.
I've never heard about the 3D complaint until now (well, F&F). It just doesn't really do anything to fix the major "Screenz" complaint. KK gets hate for being another screen based attraction with a tease of what could have been (even worse for older people that remember Kongfrontation). I actually heard a teenager complain about it when I got off during previews. I've been to Uni with the majority of my extended family at one point or another and screens came up, but not 3D. There's definitely a lot more hate for it now though, at least when it comes to movies. Seems odd to complain when. It's a 4 min ride, but I can't understand because it doesn't affect me physically.
I thought the comparison to thrill rides was fairly apt, but slightly ignores the target audience of those rides, the purpose of a theme park, and uni's place in the market. I don't have young children though, and the advisories against didn't really exist (or weren't as readily available) when I was a kid.
While I'm not in the camp that thinks Uni's hasn't learned the right lessons from feedback, their decisions as of late are a bit baffling nonetheless. I think they genuinely thought Nintendo at USF would balance the mistakes, but now that it's going to a new park it's sad that it's going to stay in this awkward state for the foreseeable future.