Or whatever that button is called on the Xbone controller. Home button? It was the guide button on the 360...
Anyway, as a very longtime Xbox 360 owner/player, I'm used to pressing that button in order to bring up the guide. Now obviously, the guide is very very different on the Xbox One, but just from muscle memory, I find myself popping out to the home screen more often than not when I simply try to open the guide to check friends and such.
Personally, I think it would be MUCH more useful if one tap opened the side menu, and a double-tap opened the Home screen. It would also make it slightly faster/easier to take screenshots/videos without Kinect.
A simple selection when remapping the controller is all it would take. An option like "swap guide button function" or something, that when selected, simply swaps the number of times you must press the button for the intended actions to take place.