Nadal was in three GS finals, won two of those and two masters, that makes it his best year besides 08, 10, and 13. Hell, he actually performed better at the slams last year than 2013 and was a sliver from 3. And if you look at him again this year, he's only lost two matches for far, he is not far off at all. And statistically 2017 is Federer's best year since 2006 probably in no large part because of his reduced schedule. Hmmm, I wonder what another Lego haired player could do with periodic reduced schedules / breaks like these other two guys now that he's taken care of his injuries
...but I guess I'm splitting hairs here, we're basically in agreement, I was just bothered by the definitive tone that Djokovic wouldn't hit that level again...maybe not that absolute peak, but he won't need it if he picks his spots better and doesn't play 250 matches a year.