Couldn't software gradually increase power to match the grip of the tires and prevent spinning? Or would that slow it down because a spinout 0-60 (not counting rollout) is faster that a "perfect throttle" 0-60?
Traction prediction is dependent on surface characteristics [1]. You need the vehicle to not only identify the surface, but also predict the vehicle-surface interface and adjust its assumptions as tyre meets road.
It's worth doing. But it's noisy enough that it wouldn't be meaningful for a quoted statistic. (Disclaimer: I've only done this for aircraft on runways, and then only academically.)
[1] https://www.cavs.msstate.edu/publications/docs/2018/05/15870...
High performance almost always wants this stuff off so humans can use skill/judgment to push it to the limit.