Sleuth,
While I am not a huge proponent of point shooting (go read all the debates here and at GT about that and you will find that out), but even the California Highway Patrol train with it. You need to read about Lou Chiodo (he was a CHP instructor for many years, well known.)
http://www.gunfightersltd.com/
So it's not some mumbo-jumbo.
I'm a sighted fire and retention shooting advocate but I do see there are skillful people who do use it well.
Deaf