He has not faded away. I still think he's brilliant, and barring one game or two, has been exciting and creative.
Finishing could improve, though. He has had chances and not put them away. Was bound to happen, anyway. Had he put away two or three more chances, we would be raving about how he is better than Ronaldo. Also, doesn't pass backward or hesitate to take on his man. Nothing has been coached out of him.
In fact, that heat map shows how good he is adapting to an unfamiliar roles. It's a positive from him, not a negative from LVG. He doesn't have a similar map week in week out, ffs.