He may not have done it. When it happened, he may have still had a few biased lefties on board who did the shadow banning/censorship.

He isn't omnipotent and can't possibly monitor all of his workers and what they do.

Petition him directly and ask if he will reinstate you due to improper adjudication. This will also allow him to identify the individual who did this and weed them out. You will be a whistleblower of sorts, helping him to cull out his back stabbers.