It already is damaging things as it is. The Neato have peeled a USB cable and an audio cable. It also have chewed on a few laptop charger cables but they seems to be tougher so no damage. Hopefully it won't peel something that could be dangerous.

I doubt it could be that hard to detect an unusually low rotation speed. Now it seems to chug until it really stalls. Instead it should stop the brushes immediately and retreat, then retry with just the fan running.