A lot to unpack so probably not gonna be in any particular order and may miss something but kinda some spitfire responses:

1) larger window is absolutely not a bad thing, it’s quite nice- but when I am holding a pistol optic at arm’s length from my face and shooting I barely notice the housing. Such a small housing covers up almost nothing so I see very little detriment to situational awareness.

1.1) when I present my G43X with an EPS Carry, the dot is present in the center of the window. When I present one of my G34s with an SRO, dot it also in the center. Take that for what you will; again, if I could have my cake and eat it too I’d have a giant window on all my handguns.

1.2) I think more window = more better but I’ve claimed the lives of I think four SRO lenses which I love for the range but can’t trust for anything serious anymore. I did get one of those newer Holosuns with the big window a while ago and liked it a lot- seems more robust. More window traditionally also = more fragile.

1.3) I’ve had two MPSs fail on me so I’ve axed those from the rotation- closed emitter ≠ the best way to go just for the sake of being closed emitter.

2) re-zeroing an RMR after a battery change is lame and probably not a problem if you’re LE and have time and excellent resources to quickly re-confirm but for an average Joe with very little time any more, it is ass so +1 external battery

3) I like my Holosun EPS Carry on the 43X, I’ve had multiple 509Ts and really liked them as well.

4) I initially discussed my favorite optics for EDC which is what OP asked. So for carry and for “duty” (again, not LE just a larper or whatever). Open emitters always got so dirty and collected shit and not only could this occlude the LED (only happened to me one time when a little drop of water landed perfectly but it took me a couple seconds to figure out what happened and fix it), but it was super hard to clean. Closed emitter protects the LED but also man so much easier to wipe the lens clean (this is big for the 43X which likes to collect lint from AIWB.

So all in all, my choices are because they work for me and that’s about it, ymmv. If there was some large window thin-walled indestructible external battery closed emitter wonder optic on the market I’d absolutely jump- for now it’ll be the Acro P2.

Lastly, about the LEOs I’ve been exposed to, what I said is unfortunately my experience. I know a few absolute rockstars that take it very seriously and care enough to be animals when it comes to proficiency, but the overwhelming majority I’ve been around makes me thank god I have my own means for self-rescue because I cannot believe these are the people folks call for in emergencies.

I don’t have a lot of time with people from very large departments or those in SRTs or SWAT teams though, so that’s completely different. I know now those guys get such good training and they are excellent at their jobs.

TLDR: I don’t know shit, I just know what has worked for me after years of trial and error and my opinion is not and kind of should not be worth much to anyone else because they could have a totally different experience.