Yeah, it's not like your banner is fixed when you create your character.
It's not like you think it's byzantium steamrolling but there's actually 5 byzantium and then decent players with the same banner (Leshma, Ballista, etc...) and some randomers, wich makes it 10 "byzantium", who stays together, play smartly and owns you.
If you can't fight them decently, join then.
I prefer fighting them, wich is more challenging. Even though it's sometimes incredible how all your team seems to die in 20 seconds while you're actually doing your best round so far. Having fun > Being in the winning team. Though it's fun winning and crashing down people who think this isn't a team based game.