User blog comment:Hyperion602/DotA 2 Style Lane Setups/@comment-24315274-20131220080043

One problem I see is the damage schism between your team and theirs if you take 2 supports. If you have and, you don't have an  for. Plus, when one plays, one must not dive the enemy carries because does not provide  on her own and must protect her squishy carries in contrast to a  who can dive the carries and take them out.

I see how it can work if your team is super coordinated, but it heavily relies on the ability to protect and peel for your carry rather than on the individual skill level and lesser degree of teamwork found in yolo q.