Its position is utterly crap. Me and I bet that a lot of other players who play this game are constantly misclicking it due to being used that the last button in the inventory HUD is the Atlas button.
This makes it very frustrating when trying to quickly navigate to the Atlas button. Humans are creatures of instinct and mechanical thinking so it will always or at least for a pretty long time stay in our minds that the last button in the HUD is Atlas and not some crappy Gamepedia button that turns on your steam overlay...