Horseshit. You didn't even look it up.
6 of the IP were in extra innings with the score tied.
Here are Kelly's leverage splits for 2017:
High .523 OPS
Med .502
Low .643
So he was actually excellent in high leverage situations.
I'm by no means a big fan of Kelly, but if you're going to slag a guy like that you have to at least use the right numbers.