Yea, but in world war 2, there was a particular planeset for that area of operation. So if a Russian pilot sees a single engined and narrow plane, he would think right away that it's a 109, and not a Ki-61 (or whatever), and vice versa. In real life, with 20/20 vision, you can see a plane's marking (at least I can on airliners) from 5-6miles away. I can see the number of engines from 8-10 miles. If anything, the view distance should be increased.
In AH, at 8000yards, you can barely see a dot. At 10000, you can't even see a dot.