Is Google's communication good? No, not particularly. The only way something like TFA happens is if the relationship is neglected (by one or both parties). I'm not saying Railway did something wrong, but there are usually many flags and opportunities to correct long before drastic actions.
I get the impression that Railway plays fast and loose with a lot of their limits and resources and that Google may not be a fan of that.
Edit: would also like to say that if you put all your resources in one GCP project you are going to have a bad time. If you organize stuff over many projects it is very unlikely that they will ever take account wide action. I've had issues with, for example, a particular tenant's behavior, but it never jeopardized the other tenants.
Pray to @dang that you will make the front page of HN?
Agreed. Railway are probably not far off a billion dollar company though!
I don't feel safe with any one single point of failure. "Your credit card bounced", "you thought it was dev", "you got hacked", etc. are all the same problem to me and no cloud provider solves those merely by setting up an account.