The reason it's a ludicrous claim is that while there's overlapping skill sets, the idea that you can take an AI/ML engineer working on perception or prediction or planning problems and trivially apply them to textual content filtering is laughable. They could certainly pivot across, but it would take them a good chunk of time to get up to speed, you'd be better off hiring an engineer more familiar with that particular space.
The fact that they specified it being an AI Tesla engineer is super cringe Tesla-bro stuff and the fact that the commenter would say something like that hurts their credibility in making the other fairly extreme claims.
I doubt any of them can speak with much weight on AI. That hardly means they can't make serious points about censorship, or corporate finance.