Firstly, you're right on the final league position. I had it in my head that they'd finished 11th, but obviously not. My mistake.
As for the rest, it wasn't a dig, but Klopp came into a club that had decent resources and potential and he made them much stronger. From what I know - and I stand to be corrected - 13th was a false position when the resources and everything else was considered. The squad had some deadwood, but a bit of quality too. He did a really good job to improve that side to the point of being the second best group of players in Germany (on paper), but IMO he did an even better job turning a squad that was (again, on paper) not as good, man for man, as Bayern's, into a much better team than them. Not to even mention getting the side playing like one of the best in Europe, even though they didn't have the resources.
So I wasn't having a dig at Klopp, merely pointing out that for all of the years of over-achievement, he's just come off a season of gross underachievement (admittedly there were mitigating factors), so expecting him to turn up in a more competitive league and suddenly turn the side with the fifth highest wage bill into much more than that might be optimistic.
All IMHO, of course.