Who said taking your eyes off the road. Peripheral vision is a great thing
Strangely, my TC wont kick in if you manage to spin the wheels in a dead straight line. We had a discussion about it a few months back and I could swear it did, but with no light as you experience, but when I tried it out, it lets the wheels spin up with not TC intervention. Maybe if the OP is doing it in a dead straight line, the loss of power is actually a loss of traction, but as its in a straight line, the TC doesnt kick in? Could explain it