It would be different if Business Select was actually a different class of seating on the plane. It's really just a different pricing segment, no different than close-in ticket prices being higher than tickets purchased 21+ days out on a legacy carrier. Can you imagine a legacy carrier not rebooking a higher fare? "We booked you on a new flight in three weeks because it was the only one with an equal or lesser fare." If every seat is the same on Southwest then every seat should be available in IRROPS.