Actually, Padeye, part of the problem was functionality-related. The rebated rim, being smaller than the cartridge body diameter, tended to be difficult for the breechface to “catch” on the forward stroke of the slide (which strips the round out of the magazine and slides it forward into the barrel breech.)
In other words, the rebated-rim rounds tended to have a higher incidence of failure-to-feed malfunctions. NOT, as I’m sure you’re aware, a good thing in what is putatively a self-defense/law-enforcement firearm.
That’s the main thing that killed the .41 AE, and, indirectly, led to the development of the .40 S&W (which in turn led to the .357 SIG, etc…)