DiabyKungFu I like Nunez, and I doubt we'll get as good a player as him in the remainder of this transfer window. I just don't think it's irrelevant that he misses so many chances. A player doesn't just generate xG by himself - it's done by other players too, the ones who pass to him.
You could say that him scoring 11 goals from 19 xG is fine because he would generate so much that he'll score plenty of goals, or you could be worried that it's not fine because our other players would have to generate 35 xG for him to bag 20 league goals. I don't think either point is irrelevant.