I don't like the idea . . . I don't think 'stock' racing is broke.
On VRC Pro if you race a spec class you will notice, motors are locked, gearing is locked, and heck half the setup is locked. There are still people who can flat out drive the crap out of those spec cars, and there is still a large range in ability. In fact to such an extent that I would be willing to bet most races are not decided on the motor / esc / battery of the month. The fast guys are going to be fast with a silver can motor and nicads.
If anything was to be done would be to create classes based on skill level not motors (ie just like nitro). There will always be sand baggers though so no system is perfect . . .
this solution will just make things more complicated, and tedious. Tech needs to be simple, and easy to enforce, and not ruin the actual racing. I don't see the OP proposition accomplishing any of that.