Jeff, not everyone carrys their rifles like I do. I back pack hunt and often carry it tight to my pack in various ways. I carry it upside down with a sling when I still hunt or track. I do this becasue it is the fastest, surest way to get into action when you only have seconds to shoot.
If you want to believe that this won't happen and even if it does it won't make a difference, fine. But one thing is certain. The euros with their very fast focusing system don't have to be moved much to throw them out of focus. With Leupolds, not only is it much harder to move a locked ocular, but they must be move at least three, maybe four times as far to throw off their focus the same amount.
So, to each his own. E