For people who don't know kong, the first thing that comes to mind with it is the Empire State Building scene and that's pretty much it. Nobody (I know atleast) really talks about skull island, shame too because that's easily the best part. The original King Kong was one of my favorite movies as a kid even though I was scared of it, maybe I was just a weird kid.
To me if there is no height restriction or anybody letting them know this ride will freak you out beforehand, there will definitely be a TON of complaints. Even though it's facade is spooky, it's a theme park. People will go in it knowing what it is or not. Also when the word "scary" is thrown around at a theme park it's usually on how many drops or flips it has, might be a confusion there too. Don't think they'll make it less scary but If it's as scary as people are making it out to be, there can't not be a reaction.
Also if that crazy parent that said tough to be a bug is child abuse is reading this. I will buy you a universal ticket just to see your reaction on kong, I mean it