I see it as Google setting an example. Yes, they had to let Kubernetes go in order to give it independence. They gave it a nice cushion in the $9M of services. I'm betting that AWS and Azure will step up and provide similar padding to the now-solo foundation.
I knew of someone who worked in an airline ticketing office at a military post. They could write tickets for any airline that serviced the destination requested. It wasn't bribery, but a lot of different airlines offered him perks to remember them when ticket-writing time came around. Azure and AWS aren't stupid. If Kubernetes works well with their playground (which it already does, but it could probably be better), they will also give the foundation some free playground space.
Prediction, not prophesy.