As an Empire player, I think it is funny, that in order to get rid of Tie swarms, they (FFG) gave the Rebels a swarm...
It won't even get rid of the TIE swarm anyway. Imperial players don't fly TIE swarms because "it kills Rebels", they fly TIE swarms because it's one of the few Imperial list that can reliably offset the inherent heads-or-tails aspect of playing the Empire.
I mean, TIE swarms have been fighting other TIE swarms since day one. Why would a Rebel swarm suddenly change their minds? The only thing that can get rid of the TIE swarm is if something better than the TIE swarm comes along.