Maybe they just enjoy the things you dislike about it.
It’s a classic, it’s entertaining, it remains incredibly popular and any controversial elements can be changed quite easily without necessitating anything drastic like an overhaul.
I’m all for a new attraction in Adventureland though, if the expansion pad is still available.
Sure, but I'm just giving my opinion -- one which I know is unpopular here. It's the only classic Disney attraction that I just don't get; I think it made sense when it was built in Disneyland and still made sense in Orlando through the 70s and maybe 80s, but once Animal Kingdom was built it lost its purpose (especially considering it was originally built to be a realistic documentary ride; not one full of jokes). If they demolished it, they could use it and the expansion pad to add multiple attractions and possibly a restaurant too. But as I said elsewhere, they're about to release a Jungle Cruise movie. Unless it's a massive flop, the ride isn't going anywhere -- it will just be updated to add some scenes/characters from the film.
The one in Disneyland should stay, though.