So? He turned 20 in May. He was a teenager, scoring and assisting on his debuts etc. He played 11 times last season by January, and then sadly got injured for ages. He clearly would have reached about 20 appearances last season without that. An undeniable trajectory. He was 19 years old throughout the season trying to break into one of the best teams this league has ever seen, in a position we're stacked in, and Pep was clearly prepared to use him a fair bit. It was understandable that Pep didnt use him at the end as it was too late to ease him back in... but its as clear as day that Pep rates him. He's had more football than the likes of Delap, McAtee and Lavia combined.
As for Sane and Sterling. Well, its a lot easier to break into Schalke's side or that old Liverpool side then itll ever be for Palmer to get into City's side. He'd have got into those sides too IMO. Lol at Walcott. Irrelevant.