That's interesting... I popped in and out of an AI home-world with two of these cockroach clusters, using a permacloaked scout-IV, and they haven't been aggroed by that.
I got decloaked by the Tachyon whatsit and it was sitting almost directly on the wormhole. Thus trigger, thus kablewie, thus very very *blink, wow* death.
My poor MK 1/2 Maws never had a chance trying to eat that many ships. I'll give 'em credit, they gave it a go, though.
It's not like I would have won that game anyway. I freed a dyson sphere that was hanging off 3 coreworlds before I realized said Coreworlds were there. I can only imagine how that would have turned out.