There does seem to be a need for Google to clarify their rules for "banning" an email used for sign-in.
It seems like things should be more granular, such that being banned on YouTube doesn't make your thermostat quit working, ruin your phone contacts/photos/etc, or cut you off from your unspent AdWords funds.
It's worse than that : considering the importance that YouTube has taken, for some people being banned from YouTube might be considered to be akin to be banned from exercising their profession, or even just be able to be a full-fledged citizen.
It seems like things should be more granular, such that being banned on YouTube doesn't make your thermostat quit working, ruin your phone contacts/photos/etc, or cut you off from your unspent AdWords funds.