I used to think this too. However....
This is probably true. People aren't leaving happy. And quite frankly, seeing Simba eating bugs with Pumba will probably make them happy.
I am growing more and more apathetic towards these things. The parks are no longer being designed for me, it's a different consumer they are now targeting, and by all accounts, hitting the bullseye. Disney is no longer an every year thing for me, maybe every 3/4 years now, and once my kids outgrow it, then probably not at all anymore.