Yeah the thing that the ACOG have going for them is the glass at fixed power is much easier to have a crisp clean image. The good thing is if your spending ACOG money then your spending the kind of money that can get you into a solid LPVO. I have a 3x24 horseshoe reticle acog on my Arsenal SAM7SF with an RMR piggybacking on it. It’s very capable and the acog is a good option for most shooting you will do with a standard AR from 75-500yds.
Inside that you will experience slower engagement times and you also have to understand the limits of the magnification of the acog for long range. I believe the marine corps adaption of the Trijicon VCOG(Solis choice) and the army’s selection of the sig 1-6(idk why they picked that optic smacks forehead) is a sign that maybe people are coming around the the fact that many of the top tier LPVOs are incredibly durable and offer very real advantages over the previous generations of combat optics.