I would think with a business the size of TWDC, you’d have a business continuity dept. They should know what the critical business functions are, what the dependencies on them are(facilities needed, workforce needed, suppliers, technology, etc.), and then plan recovery strategies for them. One of the main loss scenarios of dependencies you plan for is “loss of workforce” there are a variety of strategies that can be in activated in this scenario, (hiring, outsourcing, limited service, or discontinued service) but usually there is data on the minimum level of acceptable service and the workforce needed for minimum operations.
that is an ideal scenario where your company is effected in isolation and all other services are available around you. Since this is a completely new scenario, many companies knew what they needed and it was sometimes cheaper and quicker for the recovery aspect to keep trained people around and happy. When everyone was in the same boat, that’s fine, but when the speeds of recovery are now going at different paces, the traditional loss of workforce scenarios are playing out and companies are looking to recover from it.