Not sure where you sit, so it might have been difficult to see, but the sequence leading up to the Sislo game-winner was just a great effort by him. He fought to get to the UVM player trying to clear the zone, broke up th eplay, stole the puck, got it down low to his linemates, then fought his way into the slot to net the rebound. I'm not sure we've seen that effort from that line in a few weeks; it looked like it would be the typical, "UNH loses the puck and meekly backchecks as the other team clears it on them". Instead, it was more like what we saw earlier in the season; the team needed a big play, and worked their butts off to get it.
Maybe it was just a coincedence? Maybe Sislo wasn't "taunting the crowd or the bench", and was just excited to have given UNH the lead. Or, maybe he was a tad frustrated at hearing the UVM band in his building, and seeing the UVM mascot on his ice. And, perhaps he, nor any of his teammates, are sitting there thinking, "It's his first goal, I'm sure he's not trying to taunt us, or show us up, even though it does tie the game at 3, with just over 3:30 left, after we had a 2-goal lead. I won't return the gesture if I score on this very next shift with a hard-fought effort to keep the play alive and then score. I doubt the crowd would even cheer, out of respect for that guy."