Okay, so why is no one recommending some sort of blend, like an ACOG 4x32? Yes, it's bloody expensive, but it has some magnification while remaining useful at room-clearing distances.
As I understand it the use of the BAC (Bindon Aiming Concept) using a 4x scope ran into issue which is why you started to see RMRs mounted on the top of ACOGs.
Also you have to look at the primary use of the rifle optic. If the intended use is primarly inside of 100 yards the red dot will be more effective than a 4x scope. So it makes more sense to have the best optic for the rifles primary use.
If you want versatility you're far better off getting a 1-4 or 1-6 optic which will be nearly as fast as a red dot when at its 1x magnification and still just as effective as the acog at 4x.
Ultimately, I think the ACOG was a great option when it was first introduced and there were not a wide variety of affordable 1-4,6,8,10 optics on the market but now that 1x variable optics are far easier to find they beat out the ACOG every day in my book.