Agree with the first part.
No way he can score on every single touch of the ball this season too
1 in 2 is a good number, would be happy with that.
Got 13 in his first 14 Premiership appearances, adapting to a new league and a new team. Including Europa league and cup competitions I wouldn't bet against him scoring over 25, but as you say I'd be perfectly happy if he gets 1 in 2 over a full season.