Hall was great but how he left, the run up to it, specifically was bad. His attitude was piss poor, complaining about fans in the media (the boos), to the actual ear cupping gesture.
Nico and team have seen a lot worse from the fans during some of the rough spots since then ( think the ducks game before the massive win streak, fire ruff chants, think last season dropping 3-4 goal leads to lose a game with ruff/Green team was mercilessly booed off the ice after periods or game)... Yet since those, every player or coach asked about it said "the fans expect better, they expect wins" or "we understand their frustration" (in particular ruff and Keefe to an extent, and Nico was always saying fans deserve better because they didn't get to play their game well)
Hall was the only asshole in recent memory to make a comment about it
This was a guy who got like 10 breakaways and couldn't score across many games.
F him right now, at least.