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Wind chill is a measure of the perception of winter temperatures on human skin.

Certainly the car is affected by wind in cold temps. But that's something else that we would measure entirely differently.

'Feeling cold' is measure of heat flux.

The air velocity as measured relative to a parked car is not relevant to EV range. When the vehicle is moving the relative air velocity is far different than what it is when parked.

Doesn't the range of an EV drop as the heating load of the cabin of an EV increases?

And doesn't the heating load of the cabin increase as the air velocity over all of its metal and glass surfaces increases? Isn't the shell of the car essentially a giant heatsink with a 70mph relative wind moving across it?

Yes, yes, and yes.

However the speed of air over the car while driving is unrelated to the airspeed that meteorologists use to calculate the wind chill in your local weather report

…and therefore your argument is that the wind is somehow blowing on a battery that is enclosed, as are most EV traction batteries?