For a little perspective here, two facts: (1) before the last season most posters expected 500-800 yds from AJ due to normal (high-end) rookie performance and (2) AJ almost broke 1000 yds last year and had either the 6th or 7th best rookie performane (sorry can't remember, aj did the homework on the old board) in NFL history. Keep in mind that from a WR's point of view, last year was a nightmare due to Carr going down/playing hurt, Banks going down and then the 3rd string left handed QB playing.
As for drops, I will try to dig up the research again, but Bradford and Gaffney had 1, that's right, 1 drop each last year and AJ had 10. Now ten might sound like a big number until you see that "never drops a ball" Moss had 9, etc. As I said, will try to dig up the comparison and post shortly but statistically, AJ's hands are not bad.