Don’t those ACOGs in the picture have night vision capability? That would certainly be a plus. Otherwise, I think optics on a medium range rifle can limit an accurate shooter. Not as quick to acquire and hold a moving target as it is with iron sights.
I’m sure the ones the military buys will work with NOGS, yes.
And they work fine with both eyes open, that’s a technique that is trained for. So I’m not sure your thesis is correct.