It's a difficult situation as it seems to be a problem in a number of blocks, if you start ejecting people from one block then you need to do likewise in any other blocks where the same problem exists, this would soon end up becoming a bit farcical and spoil the enjoyment of people that have come to enjoy a hockey game, I feel the commotion would also be seen by the players and could affect the game itself.
The problem needs sorting at it's source e.g the entrance to the rink rather than try to sort the problem whilst the game is in progress, make people aware in no uncertain terms when they enter the rink what the ground rules are regarding masks and unsociable behaviour, a ban from all future games. We've got to nip it in the bud before we have a situation like rugby matches.