I have a few convenience scripts that access the Gmail API for my own inbox, and only my own account. Does anybody know if there is some kind of "under development" flag I can set so that I don't have to undergo this review? Am I going to need to convert them to directly using IMAP or something similar?

I'm not horribly against this policy, email is pretty central to a lot of peoples' world, and I suspect there's lots of really really scummy actors out there. In an ideal world I'd be able to say "hey this is my email and I personally wrote the code accessing it, so let it do what it wants".