As an aside. I have made it a point to simply login to my google sock puppet accounts annually from my desired location simply to avoid these such lockouts.

Their primary denominator seems to be ISP. I also use a linode instance for many as wel. Gives me two locations.

Disclaimer: I don’t think anyone can really speak to the google ai, decision making process. But I do know at least one appeal has silently been allowed in my case.