The big question is IF.
Again,
@RamCares, Lydia, I urge you to contact the technical people and find out once and for all if this is a design feature and why it is there. And if it is designed that way, encourage them to issue a TSB advising technicians of the fact so that the complaint can be explained and not just brushed aside as the ravings of a neurotic with "Unable to Duplicate."
Stop with the private message crap and send a PM yourself to someone in engineering or even training - just to someone who might have a firm answer one way or the other if this is a design feature. Even better would be to know why -- to flush the stale cabin air or to defrost the evaporator?