I'm that in actuality, all this has little to do with improved function and nearly all to do with fashion. When your hero shows up at the club with a funky new forearm and then shoots well with it, you and all your buddies want one just like it because #1 it looks cool, #2 you attribute your hero's outstanding performance to his new forearm, trigger, shooting gloves, far-out colored shooting glasses, bore cleaner, etc., etc., etc..
Those old guys reaching way out on the barrels remind me of 3-gun shooters with their carbines these days. They use that not because it is combat tested but because guys like Costa, Haley and others use it in their videos and courses. It's just fashion.
Fashion is human nature and has been around forever. Fashions come and go. Today I noted a painting of the skipper of the USS Constitution from 1812 and he was sporting a faux-hawk hair style! And who would have ever thought that, in some circles, it would be fashion correct the wear your pants below you buttocks? To think that there is actually a method to this minor madness regarding shotgunning is prolly really stretching it boys.
