Yeah, an individual needs to win five games with the team to achieve rewards. Once you have won 5 times, it doesn't matter how low the team ELO gets, you're locked in. So technically people can tank the team ELO to like 600, have a full crew of 5 people who've never played, and have those 5 play/win 5 games. Then they qualify for gold rewards at like 800 ELO, since the team locks at the highest ELO so far achieved.
I clicked on one of those videos linked, and I was like... I HEAR VOICES.
dat blahs australian accent