They showed up to play - and got stoned by Woll in the first period. They responded terribly in the second by not hustling, getting outworked, and allowing two goals that shouldn't have happened. Yet they actually outchanced BC in the second period. That poor response continued into the first part of the third where lack of hustle and poor puck movement handed BC that disastrous third goal. Yes, they mounted a huge comeback at the end and had even more chances to score that Woll stoned or that went wide, but the overarching problem was their initial response to the adversity they faced was bad. The same thing happened against Northeastern - get down a goal quickly, play like garbage, give up another goal, hold on to keep the deficit at two, eventually regather a period or two later, make huge comeback. I don't fear as much that they give up the first goal, I fear that their response to giving up the first goal is to go into Chicken Little mode and think the sky is falling. That inevitably leads to more and more poor play, more bad goals, less effort, etc. That falls on the shoulders of everyone on the ice and behind the bench.
If they were better mentally prepared to respond to immediately respond to adversity, giving up that first goal to BC wouldn't be a major issue. You refocus, adjust your scheme if necessary, get a drink of water and get back out there. But when that first goal went in I think we all knew a second was coming soon and it'd be a bit before they began to dig themselves out of that rut, if they did.