You are right that any crisis shakes up things and that even someone looking pretty good right now might get in trouble.

But on the one hand we are talking about people with wealth in the order of the GDP of a mid-sized country.

Meta truely is a one-trick-pony, with ads making up almost all of their income, and of course they could be in trouble if a scenario like what you suggested were to happen.

On the other hand, Zuck has money without end, so he can buy whatever would continue to make him money.