It's hardly game breaking (though the game in general isn't as well polished in any area compared to MW3) and I completely disagree that it doesn't reward teamwork. If I revive a team mate, we don't lose that ticket and can take that objective. Somewhere like Metro, I can hang back and provide cover with an LMG whilst dropping ammo crates and provide ammo for the other 11 players.
I don't see the issue in creating two separate squads outside of PSN, go in to Server Browser, find a server with very few people, tell the other squad what server to join and bingo, may take another round of switch team, but you should get there. Sure, it could be better and it is naff, but there is a workaround.