While this is largely true, i think it's still worth mentioning that they don't really need it to scale. It's a nice surprise, just to have Brannstrom looking competent and bringing a little bit of puck movement to the bottom-pairing of a team that badly needs more of that element than their other Bottom-4 defencemen bring to the table.
Like...nobody is expecting it to scale to high leverage Top-4 minutes. But the reality is, he has been solid in the curated bottom-pairing minutes they've asked him to play. Which is fine value and a pleasant surprise on what was largely seen as a "contract dump" in this Poolman deal. Getting an actually playable NHLer even in protected minutes, is just a pure bonus.