I have handled a few pistols with lasers, to me it seems like one more thing you need to remember to do while in a highly stressfull situation. Simple is better in my book.
I haven't had to use one seriously yet but do have (good) lasers or laser/lights on all my defense guns, where available. Handguns, rifles and shotguns.
There is probably more misinformation and wrong ideas about gun mounted lasers and laser/lights than most any subject about guns.
Most of it from the movies or what people think they know.
The laser is a sighting system for low light and dark use. It requires knowledge, skill and practice to master it.
Your statement is a good example of the normal lack of knowledge of the subject (no offense, that's about all most people know).
Did you just "handle a few pistols with iron sights" and you became an instant expert with iron sights? Why do you think you should know what you are doing by just handling a couple laser equipped pistols?
It's funny because that's just what most people think. That all there is to being competent with the laser equipped gun is pushing a switch.
I have a home range and for a number of years have practiced several evenings a week with laser and laser/light equipped guns and I'm still learning.
One thing I do know it is, that fast, accurate shots can be made using a laser that are extremely difficult to make any other way.
A quick example.
Training three (senior) ladies in basic shooting.
Their third time shooting, I introduced them to the pistol laser.
The gun, a Ruger 22/45 equipped with a Streamlight TLR 2 laser/light.
The target, the hostage target where the BG is holding the girl and pointing a gun at you.
The challenge, empty the magazine into the BG's head from 10 yards, using the laser.
All three ladies put their ten rounds in the BG's head.
The second challenge, I picked one lady and told her, "Shoot the gun out of the BG's hand, ten rounds.
Her target. Bare in mind this is only the lady's third time shooting a gun and her first time using a laser.
I told her the miss was not acceptable.
Can you quickly point shoot, left (weak) handed, in low light, with a small pistol?
I know I can't, without using the Crimson Trace laser. Heck I'd be lucky to keep a few shots COM and a few more anywhere on the paper.