Interesting. It seems like a ToS violation would have been worthy of a warning and revoking the offending earnings, but nope, it was no mercy or review.
The person would have agreed to the placement rules when they signed up then went and broke them leading to Google and advertisers being defrauded by a bot. Why would you expect mercy there?
or at least an explanation. That would of course require a customer service apparatus designed to service customers rather than one designed to force them to become tangled in the abyssal morass.