although their games are simple enough (1v1, 2D movement, limited button choices) where you can have the game just predict what the opponent is going to do and then un-do it if that prediction is wrong (ie, rollback netcode) and mostly not have to worry about ping all that much (within reason)
whereas trying to do that for a 3v3 hero-based air hockey game sounds near impossible tbh (at least, for a reasonable development cost and timeframe for a small indie studio’s first ever game)