Talk me off my ledge ;-)

Ppl don't usually take gremlin swarms free because they're so cheap. Also they really don't do much other than be incorporeal and annoy warjacks; with Carver though that becomes a very different story. Quagmire is brutal on them and can effectively remove melee jacks from the game.

And the "no healing" thing octavius mentioned refers to the warjack-only grievous wounds-style effect on sabotage, which is likely more relevant than the damage itself