It doesn't explain "artificial downforce" as I see it. It must be me.
The only additive load/force imbalance here that might be at play is that which is not recovered as the wrinkled tire unloads as it leaves the contact patch and is therefore lost to heat, but initially that force loads the leading edge of the tire as the ubiquitous downforce component?
Meaning its directly related to the heat the tire's sidewall generates, which IMO is not a lot and almost insignificant?