It's not to say it's been a disaster, but it hasn't really been ideal for him to pad his numbers. It doesn't seem like they treat him special or promote him any more than anyone else. All of that might be great for him becoming the best hockey player he can be that he plays for the best team and nothing is given to him and it's more competitive and he's not being force fed free points to boost his draft stock (the draft is a points contest essentially), but I do think when you're talking about marketing and all that Hagens marketing has suffered this year. He doesn't always play PP1, he doesn't always play first line, he's not given the free EN points (Leonard has like 6 EN goals, which of course has boosted his season and I think the team has like 12 EN goals or something like that and I don't think Hagens has even 1 EN point), and also they've played a crazy difficult schedule (which sounds good to get better, but maybe not to market your draft profile).
Hagens stock has dropped while at BC, and I don't think it's because he's gotten worse (he was given a big platform at the WJC and it went great). It hasn't been an ideal fit for him to score like crazy.
And I think all these cases matter when situationally evaluating where would be the best place for Pelosi to help his stock, assuming he ends up as good as people suspect and he matriculates a year early. So BU or Michigan can pitch to Pelosi they had two highly touted players come in during their draft year and win the Hobey Baker winner and their draft stock only increased. And with Hagens BC can maybe pitch they won the National Title (we'll see), but when it comes to Hagens it'll likely be his stock fell and he wasn't put in a great situation to put up big totals.
So as a fan of American hockey the BC experience hasn't went ideally, and I'd rather avoid it if Pelosi is the next great American player after Hagens. There are a bunch of schools that will give him that platform to increase his draft stock.