[@Natsucooldude]

1v1s are the easiest to manage. Anything onwards - a 2v2, 3v3 - is going to be at a slower pace and the likelihood of someone dropping out is somewhat higher; and it can get a bit confusing as well.

EDIT: sorry, misunderstood your question. Yes, the arena isn't to just restricted to character vs character fights - it's just that those don't happen often here.