It's explicitly stated that these guys don't deal any actual physical damage, but they are apparently way higher than baseline subsonic, so even using their voice lines to know when they'll roughly pop up, like in the video's apple posted, won't be much help. They are so fast to the point where they'll see someone with athletic human speed, like chanimate, moving at a snails pace compared to them.
Even if they get the timing right, the sentient trash will be able to react to any attempts at attacking them easily. And in the unlikely scenario Chanimate does somehow land a hit, bucket bob and can-do probably won't be out of the fight that easily, since they're made of solid materials like wood and metal. Grabbing them would probably be the best option given the unquantifiable LS advantage and the fact they don't have their teleportation, but either way, if one goes down, the other two won't want to end up like that and be more cautious, and thus make winning even more difficult.
I think it's way more likely that Chanimate gasses out before they can catch 3 opponents ludicrously faster than them.
