Yes, it really is. Go out and shoot at that distance by pressing the gun out towards the target and you should easily hit it. I remember taking a class a year or so ago and doing drills where I'd draw from my holster and shoot while moving horizontally at a target without looking through my sights.
He was knocked down but the point I'm making is more towards the poster you replied to who was talking about how it took the guy a few seconds to get on target so him shooting was justified. (paraphrasing of course).
Just channel your inner Chuck Norris.
Edit: And yes, I agree on wanting to ensure a good shot but if you're so scared for your life with someone that close are you really going to be lining up your front and rear sight? Come on dawg.
I’ve done a fair bit of shooting... I would not just bust it out and start shooting, without getting sights on first. If you wanna do different, be my guest.
It took the guy 1 sec from the moment the gun was out and ready, to actually shoot the guy. Seems like a reasonable amount of time to me, for ensuring a good shot, while under duress.
Feel free to blast away, Chuck style!