Wellness and technology, the quantified self movement

While the severity of of the outcome of a crash may increase at higher speeds, likelihood of crashing could decrease dependent on the skills of the rider. if they have good bike control, are communicating well with others, they can use use the speed to integrate into the traffic stream most of the time. Lowering risk.
Sure, the likelihood of crashing may well be dependent on 'skills' but but at any skill level an increase in speed exponentially increases the force of impact in a crash.