This would be a good reason. In which case, maybe he should consider getting rid of the P238 and getting something in 9mm to carry. But no way would I trade a full size handgun for HD purposes for a Rami (unless the full size is junk, which a fs92 certainly is not).
Other than capacity, which we have already debunked, I see no reason for this statement. If it were any other gun, I might agree. But the RAMI is a pretty unique gun.