I'm not sure how "there are too many people in the parks" and "they are charging too much" really jive together. If the biggest problem is that the demand is so outrageously high that they literally can't charge enough to keep crowd levels down then that seems like the exact kind of problem you'd want a business to have. I grew up an hour from Disney in the 90's as well so I remember the good ole' days of having a cheap annual pass and walking onto Splash Mountain on a weekday, but as a stock holder if they can charge 10x as much and have 10x the crowds then why would I want them to go back to those days?
IF demand eventually cools because the costs get too high then they can just lower the prices at that point. But so far there are no signs of that happening. People are willing to save up however long it takes to get there, and they've done an amazing job of making it a once in a lifetime trip for many adults as well with properties like Star Wars and Marvel. The company is just 10 steps ahead of the world at every point. 10 years ago no one saw Disney having this kind of hold on adults and older kids.
I don't live nearby anymore but we've got a 5 and 7 year old and have done 4 trips back there with the kids (we still have family in the area so we're back nearby a lot), and they've been magical every time. We just got back from a Disney cruise which was just okay for me (I don't really like cruises), but the rest of the family was over the moon. This company just decides they want to enter a business and then within a couple of years they're instantly one of the top competitors in that business. Like the opposite of google who can't come up with enough dumb businesses to enter and then ultimately abandon two years later.
Of course, I am very biased of Disney both because of all the time I've spent there and also because
our Disney focused rental property nearby makes stupid amounts of money.