I'm actually not sure we're disagreeing, but I'll defer to you, seeing as how I've avoided firefights up to now, and probably will in the future, and carry concealed with a Summer Special, friction the only retention besides, of course, having it covered.
Oh yeah, we are talking about different use cases. I'd never advocate anything that would make an IWB draw any slower than it already is :) For the more block inclined, MIC trigger guards are nice for winter jackets.
I worship at the alter of John Moses Browning, so no MIC holsters for me any time soon.... But I have many many others to choose from, they've been insanely, amazingly even for me popular with civilians for a long time.
And, yeah, slow is a good word to use there ^_^.
(#1 one overriding reason is that since I was a teen the M1911 fits my hand like a glove, and I can shoot it very well. And 8 round magazines weren't a big forfeit when I started buying handguns after leaving Massachusetts and the Federal AW ban was in effect.)
For a long time I felt the exact same way (also big mitted), but I got challenged to leave the Springfield at home and use a borrowed G17 for a week long course. I still prefer the M1911 for sport, and satisfying my need to constantly tinker (yes my feedramp is polished and ejection port flared). But if I were pressed - I'd begrudgingly go with the utilitarian choice offered by Glock. But everybody has their reasons for developing preferences in their tools: I will give up my modal text editor when they peel my cold dead fingers from around it.
Although the grip angle of Glocks is just plain wrong for me, I've read that I ought to try the Springfield XD if I wanted to go in that direction. Which I don't, for concealed carry I believe an external hammer is essential for holstering safety (put your thumb on it and either stop the drop if SA or feel it rising if SA/DA or DAO).
And, yeah, given that I can shoot most guns well/very well (a couple of years of JROTC rifle team with Winchester 52s, after informal starting in 1st grade or so, made a big difference, but don't ask me to wingshoot), yeah, I should give something different a serious try just to see. I'll put it on my list.
Ah, also a Safepacker in winter weather, which is not even clearly a hostler: http://www.thewilderness.com/safepacker-concealment-holster/