Yeah, it's just a sample of a shot distribution in relation to a circle target for a visual because I didn't want to explain shot distribution in relation to a target with words haha. It doesn't say how big the target is, the ammo, system precision, or wind error but I don't think it paints all that misleading a picture. A 270 shooting a 140 partition @ 3000 fps (hotter than most factory ammo) would have a 6+" windage error if 5 MPH wind were unaccounted for @ 400 yards. So if your zero error puts a guy at the edge of the target, a misread of the wind by only 2.5 MPH would put him 3" further off target.
I'd argue that next to none of them truly keep a normal distribution within 0.5 MOA. Maybe 3 shots here and there.
If ballistics of a gun puts you 1.5" high at 100 when zeroed at 200, i'd argue thats the best way to do it! And it works well for most centerfires.
I just like chatting about this stuff and I'm not trying to "be right" or argue I just know that a lot of these things are common thoughts that we think of and I definitely used to think of it that way. Especially when folks think they have a MOA gun because they shot a 1 MOA group at 100 a couple times and think that means they can hit a 3" target at 300, 4" target at 400, etc. There's a lot more too it than that.