I made a comment about trees, but the other issue is that the map is super asymmetric. The bottom half (radiant) has a generally safer jungle and a very difficult to contest small pull (always been this way. Camp has just changed over time). The top team (dire) has a worse jungle, but it is closer to Roshan. The problem is people don't know how to use Roshan well (either capturing it or using the aegis), so that advantage isn't realized unless the team is at the top levels of the game.

I think the perspective issue is there. But its not the entire 5%