So heres some real steel context, from someone whos worked on a top tier range for the last several years. Dots are certainly faster. Dots work in any light. If you have good recoil control dots can allow for faster follow-up shots. The main issue you have Kasaran is how far forward your dot is. Thats just going to exponentially increase your dot's sway. Now, for airsoft theyre... less important. Yes, you can still find a sight picture faster than irons. Yes, they still work in the dark. But if you can't control the recoil of your gun in airsoft then go back to nerf haha. Plus, the only real use for a pistol in the military is for someone like a sniper with a long gun whos going close range (same with MEDs), or for when you run out of ammo in your primary (more difficult in the world of midcaps and high caps). Finally people tend to spam-fire in airsoft anyway, not even giving themselves time to reacquire the sights after a shot. I personally have dots on two of my many pistols: my TM G18 that I use as a dryfire/training gun more than a skirmish gun, and my mk23. It usually stays in my pack at MilSims with a lot of indoor play, as I like to find a dark corner and essentially assassinate people with the silenced mk23, and the dot helps me make sure my first round is going to be at least aimed properly. So they arent really all that useful in airsoft compared to the real world.
Oh, and while many militaries shy away from dots due to much harsher conditions for their guns and gear, many LEO forces are going to them. Probably 2/3 LEO members that come through our school have dot guns now, and are either in the process of transitioning themselves or their department over to them. Its easier to teach "put dot on target" than " make sure this post is centered between these two posts, and then make sure the top of that post is even with those two posts. Dots also make longer-range shots much easier. We ran a new course this past Fall that we told our SEAL instructors to make as an "Advanced Operators" course (pretty much meant: "go crazy, we dont even want yall to be able to clear this course), and on long range (25 & 50 yrds) distances the guys using dots statistically scored a fair bit high both on shot accuracy and number of shots on target in the timed scenarios.
