None of this prevents them from providing proper customer service that can resolve cases of false positives.

It is kind of astonishing to me that the entire chain of logic was put together without "The company could invest in better customer service to resolve disputed identity" as a third possibility.

It was certainly my first priority for an e-mail provider when I started to de-Google my life.

My reading is that this was included in point #7, i.e. access to the customer service is conditional on identity verification.