Do you think they want it to be packed so full like it is? From a business stand point obviously it makes sense to pack the park as full as you can. But at some point you'd have to think that the bubble would burst, that the prices and the crowds, and the lack of staff on some attractions would cause people to stop going right? Another thing that really bothers me is we all know Disney can afford to hire more staff. So, while yeah the parks will only ever be able to accommodate a certain amount of people comfortably, there's no reason to be short staffed or offer anything less than perfect customer service. (Note that I in no way blame ANY CM for bad experience unless they like, really do a bad job. In my opinion that definitely falls on Disney.)