You're reading BS. The best instructors teach you how to use your sights. It's one aspect of learning how to run the gun so the bullet hits its intended target. Any moron can pick up a weapon and pull the trigger.
.
Todd Jarret teaching a class using 1911s. Note his repeated comments: "Front sight crystal clear."
http://video.google.com/videoplay?docid=-4584332856867071363
.
The most important part of running the gun, is safety...
http://www.youtube.com/watch?v=o6Y7LIJm5gI
.
Watch Clint Smith clear malfunctions...
http://www.youtube.com/watch?v=BfyULpEhmug&feature=related
.
I personally take two training classes a year from guys like Jarrett and Smith.