But competitive shooting is a repetitive and standardized scenario/environment. Everything is exactly where it should be when drawing and movements are repetitive so it's many times easier and quicker to train yourself to find the dot.
Unless I have trained with a given pistol and RDS in several different carry configurations (open, concealed under shirt, concealed under coat, etc.) as well as shooting from several different positions behind cover, one hand, weak hand, etc. and can find the dot quickly in every scenario I'm sticking with what I know works.
Real life is not the range. You have to be careful that adding a feature to increase a particular capability doesn't negatively affect others or the overall applicability of the system.
"shooting from several different positions behind cover, one hand, weak hand,"
This can happen in a single stage at a USPSA match. A 3 gun match would be this but with a pistol, rifle, and shotgun. The whole point is to challenge the very best shooters in the world in the most difficult positions, scenarios, etc. You can find a match that will let you draw out of any of the positions you mention.
And in real life you still have to go to a flat, one-way
range to practice. Nobody is getting into gunfights to practice.
Real competition, and the range practice that is required in order to do well at matches, is the very best way for civilians to practice for "real life". That's why 3gun and USPSA matches are packed with SWAT, SF, Military, etc. It teaches you to shoot faster and more accurately. That is
always better. In no situation does shooting
better hurt you. If you want to get additional training from tactical/self defense experts, you will already be competent with the technical aspects of shooting.