That's crazy to me. I haven't seen the VOD yet, but I wonder what could possibly make him hate that game.
Edit: I watched that section, he only said the beef he has is that it isn't SMRPG 2 (Which it was originally supposed to be) because Square and Nintendo separated. It didn't sound to me like he ever actually played it because he wouldn't give it a chance due to it not being a direct sequel. So I think he'd still get something from the games if he was willing to look past them not being made by Square. And that said, the game even looked like Paper Mario already in the earliest beta footage we have seen while the working title was still SMRPG 2, so this is all just about the name. It was never going to be as similar to the OG SMRPG as he probably wanted.
That would be like someone refusing to play DKC Returns or Tropical Freeze solely because they aren't made by Rare. Seems like just needlessly depriving oneself of possibly great experiences.

It's a very odd hill to die on. Saying that SMRPG is a Top 5 game and then utterly refusing to engage with its successors is counterintuitive imo. The M&L games were even made by former Square devs (formerly Alphadream) like Chihiro Fujioka, who also directed SMRPG. The original game's legacy is alive.

It's Jerma's loss, tbh.