Actually, this is intentionally a low impact design, to avoid the following problems with the old "ram into each other" method:
* require substantial force and velocity for docking alignment and capture
* create critical operations
* affect structure fatigue life
* disturb zero-g environments
* difficult for small mass vehicles to use
* support a limited range of vehicle performance capabilities
So the miss you're thinking of isn't really where this is used. Also, this is an androgynous design (it can dock to itself) which makes things more complex.
* require substantial force and velocity for docking alignment and capture
* create critical operations
* affect structure fatigue life
* disturb zero-g environments
* difficult for small mass vehicles to use
* support a limited range of vehicle performance capabilities
So the miss you're thinking of isn't really where this is used. Also, this is an androgynous design (it can dock to itself) which makes things more complex.
(From this PDF: http://dockingstandard.nasa.gov/Meetings/TIM_%28Nov-17-2010%... )