When the Alistar Support Ults and Q's the enemy team when its a 2v5

He's buying you time, make good use of it. Support should give their life to keep other members of the team alive. They dont need kills they just need to make sure you get them and the enemy team gets less. So dont go in and berate the support for going in, he is doing you a huge favor. This rule applies for Braum and other engage supports that can stop a whole team for a limited time. ENGAGE SMART, RETREAT SMARTER.