You honestly believe ABS caused that accident??? Really? I got a bridge to sell ya' too.... Once the car was sideways, it was already too late. The tires were already skidding sideways, and the car already had momentum towards the curb. ABS or not, that vehicle was going into the curb thanks to simple physics.
There is nothing in an ABS system that would have caused the pedal to go to the floor. it would literally take a catastrophic failure of the entire ABS system ( 2/3 of the valves internally would have to stick in an improper position in just the right combination) for anything even remotely like that to happen. The odds of that are infinetessimally small. The fact that the light was coming on should have been a pretty clear sign that there was a malfunctioning component to start with. When your tires go flat, you don't install a lift kit and mud tires to fix the problem, do you? When the engine develops a mis-fire, you don't simply cut off a couple cylinders to prevent it, right? Maybe if the problem had been fixed instead of band-aided by ignoring the light and disabling the system, there wouldn't be a problem, would there?