1. Because most players don't have a class with blind eye.
2. Because by the time an enemy gets a swarm, you are basically f*****.
Only time I've stayed in a game when an enemy got a swarm was when I had my own swarm to call in. Had to wait for his to finish before I could call mine.
So, you quit/dashboard when they get a swarm? NICE KD THERE KID!
I've got a class designed to counter any and all streaks actually. If there's ANYTHING on the map I switch to it and take the streak out. Think I've only had 10 swarms called in on me though, and I switch to that class.