I think what he is saying that at 1000 yards the dot on the recital blocks out the target.
But all mil dot scopes I've seen, there is no dot on the cross hair, the dots are spaced up, down, left and right of the cross hair, so its the wire itself that's on the target, its no different then any other rectal.
The Mil scope has its advantage, the MOA scope has its advantages, and the MIL/MOA scope has its advantages, it just depends on what your shooting.
An example, I shoot 1000 yard matches. Most of these matches has an any rifle/any sight and any rifle iron sights. I use the same rifle, remove the irons and put on the scope. My irons are MOA so I want an MOA scope. I know the scoring rings in inches, so I want a MOA adjustments.
In hunting I like a MIL/MOA scope. I know the animal size in inches so I want to be able to adjust in MOA, but I like the MIL for ranging or, for use of my Point Blank Zero. Meaning, I know the size of the animal in inches, and the vital area in inches. So I figure how many Mils the animal will fill to keep me in range of my PBZ, to keep my shots in the vital are without hold over/under.
For example, an antelope is about 15 inches from the top of its back to the bottom of its stomach. So if I sight my rifle in for 275 yards, I can stay in the vital area from the muzzle to 325 yards. Using the mil dot, if its 1.25 mils, I don't have to adjust, or hold over. If its more, then I can adjust in MOA because I know the size of the animal.
If its out of range, I like the mil dot for ranging, laser range finders suck on the prairie.
As I said, depends on how you shoot. I don't want to be limited.