If the rear wheel locks up and begins sliding out of alignment during a straight-line emergency stop on a non-ABS motorcycle, why should the rider KEEP the rear brake locked until fully stopped?

1. Releasing the rear brake while the rear wheel is out of alignment with the front wheel causes the rear tire to suddenly regain grip, snapping the bike upright violently and catapulting the rider in a highside crash
2. Releasing the rear brake will cause the motorcycle fuel tank to explode
3. Keeping the rear wheel locked cools the brake rotor through air convection
4. A locked rear wheel stops the motorcycle faster than a rolling front wheel