The relevant part is at 1:17. I've watched it several times, I still can't figure out what happened.
His speed was moderate. He didn't seem to be braking terribly hard. In the comments he confirmed both of these.
He also seems to be driving in the correct part of the road, following the car tires and off the painted surfaces. And the road didn't look that bad.
It seems he's blaming the stock IRC tires.
Regarding ABS -- I don't know how motorcycles/scooters do it, but I was annoyed to learn that on my van I needed the manufacturer's horrendously expensive tool to activate the ABS pumps if I wanted to properly change the fluid. It makes it even more expensive, and more importantly bothers me in principle.