I think everyone needs to hit the brakes on Kleven a little bit. He's closer to JBD than he is to Sanderson, in terms of NHL readiness. He probably won't be a factor until 2024/25, at the earliest.
Big defenseman without high-end talent (Kleven is not Seider) almost always need time to adjust in the pros. They can't simply get by because of their size at the NHL level, like they were able to in the NCAA of CHL.
Scott Mayfield, for example, made the NHL in a 3rd pairing role at 24, after playing 223 AHL games. Methot himself played 195 AHL games before making the jump.
And I like Methot, but this obsession with Brannstrom's size is bizarre. No, he's probably not going to be in a top 6 on a top-end cup contender. But the guy has proven he's a fine bottom-pairing defenseman on an average team. He'll comfortably play 500+ games at the NHL level.
In that Twitter thread, someone brought up Joe Corvo, and Methot responded that Corvo was a gym rat and 210 lbs. So? Joe Corvo went out of his way to avoid contact and had no interest in actually playing defense. He's so dug in now he'd probably argue that Brian Lee was better because he was 6 feet tall.