"How many orgs that have gone big on public cloud could survive being thrown off their 'infrastructure' at almost no notice?"
Who cares? We warned 'em, they ignored us in favo(u)r of better marketing. They have made their beds, let 'em lie[0] in 'em.
[0] Or more probably, they will take their lay, and bugger off & lie about it. My O-level English teacher is now spinning furiously.