> THEY were in the wrong, and a lawyer agreed.

Not sure where you get that from. He doesn't say that in the cease & desist announcement video (though it's worded in a way that lets the viewers speculate that). Also from every time it's brought up on the podcast he's on, it very much seams like he knows that he doesn't have legal ground to stand on.

Just because someone let's a trademark lapse doesn't mean you can rightfully snatch it up with a new registration (as the new registration may be granted in error). It would be a different story if he had bought the trademark rights before them lapsing.

Allen Pan makes entertaining videos, but one shouldn't base ones understanding of how trademarks work based on them.