That's because adding 8-shot revolvers and allowing minor scoring ruined revolver. You absolutely have to have an 8-shooter if you want to be competitive. Out of only 31 shooters at Nationals last year, 2 shot major. 2!
I'm also willing to bet that every single one of those guys who shot Nationals also shot ICORE Nationals, which is a better match for revolver shooters, period. I don't think USPSA should get rid of the division, mostly because I still shoot revolver, but I also am not going to cry my eyes out if they do kill it.
I do think they should keep it for Steel Challenge, because they have 533 divisions at Steel Challenge anyway.