If you're a GCP customer with a TAM, here's how to make them squirm. Ask them what protections GCP has in place, on your account, that would prevent GCP from inadvertently deleting large amounts of resources if GCP makes an administrative error.

They'll point to something that says this specific problem was alleviated (by deprecating the tool that did it, and automating more of the process), and then you can persist: we know you've fixed this problem, then followup: will a human review this large-scale deletion before the resources are deleted?

From what I can tell (I worked for GCP aeons ago, and am an active user of AWS for even longer) GCP's human-based protection measures are close to non-existent, and much less than AWS. Either way, it's definitely worth asking your TAM about this very real risk.