Thinking about this more, this approach is innovative but awkward. The point of licenses is that they provide a legal basis. "Calling out cloud providers" has no legal basis, but is instead an attempt at societal shaming. Shaming should be achievable without using licenses.

But I would rather have legal licenses than a shaming system. If we want contributions back, lets make a better AGPL. If we don't want cloud providers to sell the software, lets have the Commons Clause (but just don't annoy everyone by prepending Apache).