To see the real advantage of revolvers over semi, take in a self defense handgun class.
I conduct weekly hand gun classes. Students range from those who have never fired a handgun class to those raised with guns. I have students from 14 to 80 years of age.
I do not recommend any certain brand, caliber, or type. I advise to use the biggest caliber they can comfortably handle.
In the last few years I'm finding I was wrong with that theory.
I have found that few people will spend the time to be totally comfortable with the gun they carry.
If they have a safety, the fumble trying to find it. If it has a mag release they fumble trying to find it. Same with slide release. Some use the weak hand to pull the slide back to release it and too often don't get the slide back far enough to pick up the round or ride the slide causing it not to go into battery.
Sure they can stand there doing 3-3-3 drills for an hour they do fine, then you interject stress or the unknown, the fumbling starts anew.
As I mentioned before, I'm a firm believer in using only one hand in SD training. And using weak hand as much as strong hand. Then the fumbling really starts.
To demonstrate this I have several students face the firing line. I walk back and forth and will tap one of the students (they don't know which one will get tapped), and you get fumbling if they don't know they are going to be called upon.
You see the same thing at pistol matches. People forgetting to release the safety, having to pause and look for the mag release, all sorts of problems.
Then there is the revolver. Nothing to do but pull the trigger. Nothing to thing about (I don't let students use the hammer on a DA/SA revolver). Just pull the trigger, no thinking, no fumbling. Sure the is the cylinder catch, but they're suppose to be behind cover for reloading.
I know there are those who will pick up their gun, without thinking get it in action, reaching the safety, mag release, slide release without ever changing their grips. That is the exception.
Take into account this is in a class or range environment. Add the stress of a mugging, car jacking, home invasion; completely different ball game.
If you cant, without warning draw and fire your gun hitting a torso size target at 3 yards, in less then one second from a concealed condition, EVERYTIME, you have the wrong gun.