At legal or close to, legal expressway speed in NA any car the NEEDS a wing also needs the companies aerodynamicists fired.
I would be among those who wanted to swap the trunk lid.
AFAIK, virtually all 'road' cars create lift at highway speeds, due to a number of factors, but the major one simply being the vehicles height and the amount of air that finds its way under the vehicle (creating the lift in the same manner as lift on aircraft wing). Most rear wings on road cars, as I understand it, create minimal amounts of downforce, counteracting some lift.
That being said, many wings can accomplish this more discreetly (nevermind the resulting drag). Others, as arguably in the case of the Evo and Ralliart, not so much. More of a style exercise--if you can actually call it that.
If I were to purchse one of these, I too would look for the dealer 'wing delete option'.