To be fair whether or not vetro was a teamplayer he still was on top of the leaderboard on your team. That you cannot deny. The ones screaming he was baiting teammates are the ones who weren't watching for it to happen or let it happen repeatedly which is your own faults.
You can pick the same few noobs every round and backstab to get to the top of a leaderboard, it doesn't mean anything. If you're groupfighting with someone, you're trusting them to act as part of a team, not do w/e they want at the cost of the team.
Watching for someone to bait teammates doesn't do anything, and you can't really prevent them from doing it if you're fulfilling your own role within the groupfight, nor can you really expect other people to pick up that slack if they have their own job to do.
The best groupfighters don't always end up at the top of the scoreboard.
I didn't see what happened, so I'm not commenting on the match, but I do have a problem with literally everything in your statement.