A. He offers the least risk out of any other option. (Nkunku, Gnabry, Dembele, Raphinha etc).
B. This "He only does well because City create a lot of chances" narrative immediately loses its strength when you consider we are 3rd/4th in chances created and big chances created.
C. It's better to assess him for England vs City as England play a similar way than we do. Sterling always impresses for Southgate and they don't even play a progressive system considering they are always off the ball.