I'm not an insider, and have no insider info. But I do recall that during the reopening, Disney had a very contentious negotiation with their Actors Equity Union. I had 23 years as a union head negotiating contracts and working conditions.
I would strongly 'guess' that this massive layoff of talent is payback, and a future management negotiating tool, in response to the difficult negotiations they had in the summer with Equity. I would guess that when things settle down in the future, that
Disney will demand considerable union give backs and work rule changes, to reopen any of these workplaces. It's a dirty way of doing things, but often used by managements that are not labor friendly. In a mostly anti union state like Florida,
with little state labor law protections, I would imagine the future of the Equity union on Disney property is going to exist in a much weaker state than they were previous to covid.