IMHO Disney has a problem that there is no clear career ladder wether you are in corporate or in the parks. I have one daughter now at a big 4 firm and yes she works like a dog but she knows if she performs she will be senior in 2 years and manager in 4-5 years. The other daughter at Disney has co-workers who are in the same role as she is and have been in that role for 20 years or longer, she is the youngest on her team and also works like a dog but doesn't see much of a career ladder. She loves her job, which I told her, is rare but if you don't "love" you job and your talented I doubt your going to stick around for long when there are many other companies to go to. So they lose talent.
In the parks they had pre-covid their management professional internships that last a year. Instead of creating more leadership roles, they hire PIs, that have no applicable degree or experience to manage CMs that have experience. I don't know if it is a way to work around the union or what but people stay because they LOVE Disney, however IMHO covid and furoughs have changed that love.
I also have to give Disney props for ASPIRE. It does give you an opportunity to gain the degree/skills for advancement. But it is very difficult to work full time and finish a degree. My daughters friend in guest relations did ASPIRE and left the company for a better job so Aspire helped her but I don't think Disney benefited from it.