No way. USF should receive some special care like sudden flame nade from Relic to deal with garrisoned troops. You simply can't answer why OKW players must have that kind of special care but USF player must stick to doctrine. And it is not even an effective thing to solve the problem but just an opportunity to have some kind of fair battle after choosing the one and only commander with early garrisoned clear option.
Did you miss usf mortar at t0 exactly for that purpose?