It looks to me like the traveller hits the end stop before the motor stops, around 0:35 in the video. See the shaft turning but the traveller unable to move. That’s how the orange ‘locking tab’ gets damaged - not uncommon, see here. In practice, the traveller should live in the center of the lead screw and never come near the end. It can be a chore to move, especially once it has crashed, and I often forget to remove the bungee cord before moving it, but it’s important that the traveller never reach the end of its range of travel.
The tabs aren’t expensive - $2 or $3 - and the shipping is often higher than the part. Search for ‘Ridgid 513396001’ Look for a vendor with the parts in stock, many list them as ‘special order’.