It definitely was not full, but the games were very well attended. They bused in a lot of children from schools in the area for the games and they seemed to really enjoy themselves.
The enthusiasm that was heard on the broadcast, and the same enthusiasm from the locals in the arena, was much more a testament to their sheer joy for having four teams from the USA there. Those could've been four exhibition games between any four NCAA teams and I think everyone there and on the broadcast would've had the same level of enthusiasm.
For a city trying to promote itself as a tourist destination, after being considered one of the unsafest places in the world as recently as two decades ago, it was incredibly heartening to see how much respect and gratitude they had that teams and fans from the USA would visit their hometown and play in this tournament. That was palpable all weekend in the arena. The locals genuinely loved the sport of hockey, despite being so far removed from a high-level professional league. I was asked multiple times what it was like to see hockey in the US and told how much they follow the NHL and love it.
It was a phenomenal event and I'd 100% go back again if BU played in it. This kind of event is precisely the kind of "grow the game" thing hockey needs more of, not a gimmick event whatsoever.