Originally Posted by
Monstercloud
I'm dismissing it because it's very rarely makes the difference. This isn't a 1v1 game, and it's a safe bet that you are likely to be shot at by 2 different heroes, more if you're a HPT like a healer, or someone using their Q. Great, you survived the critical shot by less than 25~ health. Now you just need to hope that there's no one else nearby, you can get healed/find a health pack, or the sniper cares about dealing another headshot when they can just body shot you since you're on death's door.
The fact that the rest of the team has shields is moot too, because that's basing on the assumption that they are in a position where those shields are going to be an asset ... hell I'd probably be worried if 4-5 people were all gathered in the same area.