I had the same issue yesterday with my Toyo winters on the highway. Even gentle acceleration in sixth gear (on a good road) made the TC light come on. The temperature was warm at +11C and I'm wondering if at this temperature the tread blocks are too squirmy and confuse the TC. Interestingly, driving <60km/h on the street didn't seem to trigger the TC even though the acceleration was greater.
I'm hoping with colder temperatures the problem goes away.