MLAIC competition would hardly permit a 32 cal smooth bore pistol with a single set trigger.
Yes most competitive shooters will seek absolutely every advantage possible. Even is it amounts to a mm smaller group over 50 shots. How many competitive shooters have ever tried to build a smooth bore for competition. Venture a guess of none?
We have smooth bore long gun shooters around here that can beat rifle shooters offhand at 50 yd paper. There is no reason why a smoothbore pistol built up with the same care as a rifled pistol, and a load developed with the same care, could not give a rifled target pistol a run for the money at 25 yards.