Good goal. His link up play with back to goal though is frankly horrendous at times.
I think it's hard for him to find his role in the team and likewise hard for others to play with him.
As a midfielder, ideally you only want 3-4 things from your striker.
1) Hold up play whether that's to feet or in the air.
2) Running into space i.e channel or on shoulder of the defender.
3) Making purposeful runs into the box.
4) Score goals.
He does a mixture of these but it's all very inconsistent, which is much like the team.
There was one instance in the 2nd half, Pogba had a shot and he had a go at him for not passing; in reality he wasn't really in any space or had any movement to receive it. Lukaku's game maturity is more like 'just do everything you can to get me the ball', which is basically try to force feed him. That's not wrong but your other players, who are more technical and prefer using general footballing intelligence make passes based on reading their team mates' movements. That's also not wrong but one yields a foundation to do something consistently because duh it's logical to play the game reading patterns and flows, whilst the other is just individuality.