I would agree that a standard wadcutter out of an abbreviated barrel is a poor choice, but stating that it will"only" make the person angry is a bit of hyperbole.
Based on what experience? I have stated mine.
The word hyperbole means exaggeration.
To state that shooting someone with a .38 wadcutter will "only" make them mad or angry is just silly. As I stated, I agree with you that it is a poor choice. If I taunted an aggressor about his fat mother THAT would only make him angry at best or "only". There would be no other possible effect of the action. Your experience can be whatever it is, but to make a blanket statement about all other possible shootings with the round from here to judgement day based on some belief that your personal experiences will generalize to all others does not wash. Do you have some thought that no shootings with the round in question has ever stopped an attack or resulted in quick or immediate incapacitation? Again, it is a poor choice especially from a snubby. It will however punch a .357 hole in someone deep enough to hit vitals.
The one and only shooting with a .38 Special wadcutter in which I knew the shooter personally resulted in one dead home invader in New Mexico with one center punch in 1979. I suppose I could state with some truthfulness that in my experience the .38 wadcutter is a one shot stopper 100% of the time, but I think it would be somewhat of an over statement don't you agree?
Bullets do weird things. Certainly some are much more effective at incapacitating an attacker than others all other things being equal. None of them are to utterly ineffective that the only across the board result from a hit will be an elevated anger level.