I've never done it but I've seen a video of someone using it here and as said, Phil Michelson has done it in real life. I think it stopped being used as much here when WGT stopped spin being applied which made it trickier to judge distance. The video I watched was after this though and the result was pretty damn good.
As long as it's allowed IRL I don't see why WGT should stop it here.
Doesn't using your driver to sink a putt have some strange effect on your stats? It counts as a holed approach or something? I honestly can't remember what it is but I know it used to count towards one of your stats even though it clearly shouldn't have. Maybe it's been changed since then.