Real world example: My car has traction control. It also is relatively light, has front wheel drive, and has an anti-roll bar on the rear suspension.
So here's what happens; when I go into a long left hander (like a freeway interchange), the weight transfers to the right and the body rolls. The outside (right) rear wheel suspension compresses, and the anti-roll bar lifts the left rear wheel off the ground. It is a stable driving configuration, they just overbuilt the anti-roll bar for the vehicle weight. The inside rear wheel would be unweighted and providing negligible traction even if it were touching the ground, so it is not a risk.
But here's what happens next: The inside wheel is not being driven, nor is it touching the ground. Air friction slows the wheel, and the traction control system kicks in. It sees that I have three wheels going 60 MPH and one wheel going 20 MPH, and assumes that I am in an aggressive spin. It brakes the three fast wheels; aggressively. And the vehicles bucks like a horse that just saw a rattlesnake. That does cause a very real risk of losing control.
Sensor-based driving assist is a fine option. It's great for people who want the freedom to text while driving, because it keeps them from killing me. Making it the norm may reduce accidents overall, and we may reach a day when it is superior to any human. But we have not yet reached the point where economy-priced driving assist is less dangerous than an attentive and skilled driver.