It's very useful to not have all actions bound to a physical input. I particularly want to unbind '3RD PERSON VIEW' AND 'RELOAD LEFT' so I can rearrange my controls and get rid of the joystick press inputs. I've managed to do so by overloading some of the actions on the same buttons, but it's not ideal.

Exiting a helicopter mid-flight or changing to 3rd person by accidentally pressing one of the joysticks gets old really fast. Breachers had the ability to unbind inputs and it worked well, why change it?