"When I walk through a USPSA stage, I don't think "I'm going to point shoot this target and use my sights on that" because after practicing nothing but sighted fire I "know" where to stick the gun to get hits on close range targets. There are times, both in competition and real life where it will make perfect sense to point shoot stuff."
This.
What I've experienced in Caleb's scenario is that it wasn't until after the stage that I realized I hadn't used my sights on some targets. But the hits were there. If you practice enough, you get your subconscious to the point where it makes the decision for you based on what it knows you can do. It isn't because you practiced point shooting but rather because you practiced, period.