Power checks are carried out on take-off. Binding wheels are not really a problem. How big is the problem? An airline as big as BA has no 'incidents' that I can think of in its history over the last 40 years, despite hundreds of aeroplanes flying an incredible number of take-offs a year. The answer lies in training- a fool crew can easily make mistakes. Well trained and experienced crews have no need of another system to make more complications and to go wrong. It's just another thing to monitor during take-off when there's already quite enough.