Not everyone likes ARs. Some don't like the extra noise and blast associated with .223.
I don't have any problem hitting my target with open sites at the useful range of a red dot. Used one, didn't see an advantage to it. Turning on a red dot is one more thing to worry about in a sd situation.
If it works for you, it works for you. Nothing wrong with open or iron sights. But out of curiosity, did you do anything on the timer to compare speed with iron sights vs a red dot? Particularly in low light or shooting into darker areas/shadows?
No need to worry about turning it on, that's what Aimpoints are for. 3-5 years battery life. You did try an Aimpoint and not a cheap Chinese ripoff right?
The noise and blast is going to be greater for sure, unless you spring for even more $ and get a suppressor. Better terminal performance is the benefit to the blast/concussion of course, up to each individual to decide if it's worth it.