it became an issue when the pure netgainers wanted to be able to completely skimp on defence to get max NW.
YES, there is truth to the argument that it's virtually impossible with the way the game is structured to be impossible to grab (3 off v 2 def allies), BUT. If it's going to be moderately expensive to hit you, and there are targets that are going to give similar rewards for a lot less expenditure, guess who becomes the target?
In terms of outrunning retals, I personally am not completely against this, except in cases where the grabber is intentionally being a fluff.