His 59.5 comp % last year also included a majority of WR, slip and bubble screens. There's a reason why his yards per attempt was so low, a paltry 6.7. Goff not only completed 64.5% of his passes, but he did so while averaging nearly 9 yards per throw, which is a double whammy when comparing him to Josh.
You said Josh is accurate, just not consistent. I've said you cant be considered an accurate passer UNLESS you can do it consistently. Put another way, if you have the ability to make an accurate throw, like Josh is, then that's great. But if you can't repeat it, you can't consistently make that same throw so that your completion % isn't much higher than 59.5%, then you're not an accurate passer. Then throw in the fact, again, that the majority of his throws are horizontal or within 5 yards of the los, and not down the field, and what do we have? It's similar to judging a pitcher. If a guy can throw a strike while throwing 90 mph, that's great. But if he can't consistently pound the strike zone and get guys out, is he a good pitcher? The answer is obviously no.
Josh is an outstanding SEC QB, but he is not an outstanding collegiate passer. He's just not, and everybody knows it. He's capable of making some outstanding throws, no doubt about it, we've all seen it. He just hasn't shown the ability to make all the throws consistently like most all the elite collegiate qbs can IMO. And, IMHO, that's the only reason why he's number 8 on the list and not in the top 3-4.