The most problematic thing with retardicus (that's really the name they should be given
) is that you can't destroy buildings (or even vehicles lol) in their vicinity. I see why Sandlot did that (would be strange to have nets floating in midair), but you're really screwed when a thread catches you through a building. Best strategy seems to take them out from far whenever possible or get close quickly and finish them off in the other case..
Edit: Oh and it DOES feel silly shooting a spider web with a rocket launcher after leveling a whole city block, but I guess that's a positive thing