A lot of people have mentioned "keeping it simple".
Remember, the goal is not to just possess a simple pistol. The goal is to have a reliable, repeatable, simple shooting process and if you want to keep it simple, I can think of no greater benefit than eliminating sight alignment and sight picture during the shot process.
1-See target and present the pistol.
2-Subconsciously know what level of sight alignment is necessary for the shot difficulty presented.
3-Obtain that level of sight alignment.
4-Verify the proper sight alignment is at the correct place on the target.
5-Subconsciously know where your visual focus needs to be for the shot difficulty presented.
6-Shift visits focus as needed…..Sometimes this will require you to stop looking at the thing that wants to kill you.
Or….
1-See target and present pistol.
2-See red dot on target.