Today I got another automated email message from Google, informing me:
Four pages were reviewed at your request and no policy violations were found on those pages at the time of the review. Ad serving will be restored on these pages and your monthly review limit will be credited.
Hooray! Success! I still don’t know whether or not an actual human being was involved in this process at all, or whether it was all done automatically using computer algorithms. But at least it’s done.