You can't seriously blame FC from removing the possibility to farm pick-ups with a team. Where was the challenge in playing an OP team of veterans with vocal backup against PU scrubs?
Team VS team minis still exist btw. But why is no one using them? The answer is quite simple: because there's no K/D to get from that. If it was only a matter of XP and/or rewards, then full perked R10's would queue in them to be able to boast about as good they are at PvP against opponents on par with them. Not against scrupulously selected low-ranked unperked scrubs, as it can be seen in most current minis.
Besides, I seriously doublt ppl would use the tournament feature even if kills were counted there. Even if you also got rewards and XP. Because it's far easier to farm pick-ups, even if you're a pick-up too.
So, sorry again to disagree, but really, brute K/D is the root of most (not all, but at least 80% if it) evil.