Disney has increased yearly investment into the parks by 40% ($1,400,000,000) over last year, and last years was a 30%($998,000,000) increase over the year before it ($658,000,000). At one point, all that spending was (or will be) operating profits. You like the new Fantasy land? Guess what, it was paid for by profits. Disney's got a lot of new construction? Doesn't happen without a warchest full of profits.
I don't have the minutes, but I have the quarterly earnings reports for the last 14 years (
https://thewaltdisneycompany.com/investor-relations/ )
If they wanted to improve the guest experience. they would absolutely be cutting capacity on some rides. Imagine a ride where at full capacity it takes 20 CMs to make 500 guests per hour happy. Across the park there's a ride where, at full capacity, it takes 20 CMs to make 1500 guests per hour happy. In this model, these are the only two rides and the only sort of CM is the kind that runs these rides. Now let's say you were predicting the park would be at 75% capacity today and scheduled 30 CMs to run the rides, but the weather turned out to be milder than expected or the rain blew over and the park is packed full or maybe you knew it would be full but there was a labor strike; whatever . How many CMs do you put on each ride if your goal is to make the most guests happy?
There's plenty of reason to run a ride at reduced capacity, but that's a separate issue from decisions that go to reducing attendance. They reduce attendance by raising prices, and by using incentives to shift park attendance. So if they get enough people to book a trip in September instead of June they are raising attendance in Sept but lowering it in June. The goal is to reduce the guest experience for attending in Sept less than you improve it for those going in June.
Right now, Disney is spending more on improving its parks than it has in decades, $1.4Billion. Despite the occasional anecdote of a ride running at reduced capacity or having to stop searching for Deusendorf at 6 instead of 8 The parks are running closer to capacity than they ever have and capacity itself (the number of guests that can be actively entertained at any given point) is higher than it ever has been. If you lose a favorite parade, for whatever reason, and someone else gets an ElsAnna sing along show that was supposed to be a limited time summer special event, it can be hard to see that other person's gain as just as important as your loss.