on an ICE traction control cuts power when it detects the rear wheel spinning loose, to reduce the chance of the rider crashing. It would just be software to add it to the zero, if there was enough room and processing power for it in the controller. that may be the issue.
People using poor throttle control (inexperienced, tired, or ham-fisted) often have it help in the rain to keep the rear wheel from spinning up.
Like most electronic nannys, once someone gets used to the feeling of security from having it, they miss it afterward.
If you doubt this, turn off the (government mandated) TCS in any new car and watch your passenger become concerned... it doesnt matter if you regularly drove a 500hp rwd car with a locker and drag radials for years, you somehow feel better with TCS on in your AWD 4cyl sub 200hp car.
As for TCS on motorcycles, I usually find it infuriating when riding aggressively, but otherwise its harmless when riding 'normally'.