It's definitely a lot more complicated, heavy and costly than the Airbus side sticks - but at least the control surface displacement feed back loop to both pilots is complete.
As I recently understand from the 757/767, despite the 'interconnected' yokes, the possibily of splitted RH/LH Elevator surface control doesn't seem to be a good idea either.
May hope that the 787 FBW protects from such a situation.
How would it determine which input to follow?