I don't think so. Joe is on the Avatar project, which has topped $1B for a singular project.So that means our expectations of the future of Disney Parks should be even LESS than what they currently were. Cool.
I think what Disney is aiming for here is to get out those who have kept this culture of entitlement within WDI going. Once they do that, they can restart and create a new culture and not spend $5000 on a sign that they could've spent $500 on. Keeping the budgets in line has never been a strength of WDI so if this helps, i'm all for it.
Also, there's really no need for "Celebrity Imagineers". That just makes them feel more entitled. There's plenty of very talented young Imagineers that they can use for much cheaper.