Yes mine was, and the dealer did it again, when I took it in for the 600 mile run in service! This time I knew about chain tension after reading the manual and corrected it, but the dealer techs obviously don’t. Not the best of designs when it comes to chain tension, as it obviously can get mis interpreted and lead to an overtightened chain! The place the manual tells you to check tension is chamfered, so checking 2-5mm gap isn’t easy to determine. Oil leak on the sprocket seal too, since delivery, so has to be fixed under warranty!
I’ve had many a comment on the slack looking chain from other riders, but having spoken to a few KTM 790/890 Adventure riders, this is how a correctly adjusted chain is meant to be.