I'm confused about Jax's inclusion in the story-mode in general.
His and Sonya's ending, as non-canon as they might be, hint at the former's demise. From all of the story-mode, the most redundant chapter I particularly found, was Jax's (let's face it, Kenshi could have easily pulled off that chapter had NRS decided to put him in the storymode - but noo he had to get 'injured'/'blasted away' to let others shine, as usual -_-). Sub-zero's came close too, but the link-in with Scorpion at least added his worth to the story in general.
Why give him that much air-time if you might not want him to continue on anyways? I'm okay with him being on the roster in general, but I think NRS' approach for MKX did a great disservice to the newer characters in terms of their introductions, apart from the kids. The plot of the storymode, I personally thought, was overtly simplified (The comics are doing far better imo). Cheesy, but that's alright, it's MK and it was toned down a bit. I don't even mind Cassie beating the big bad, in the end..
But I was disappointed with the roster that got chapters in the storymode. There should have been at least three more chapters (Kenshi, Erron Black and Ferra/Tor OR Ermac) to develop the bad guys' side of the story as well. Overall, I'd give it a 6.5/10 - I'm sorry, I just see lots of wasted opportunities this time around, as compared to MK9.
Though I must add, D'vorah and Kotal Kahn were pulled off beautifully. Some say Kotal's stance as 'just another bad-guy' is overused and simplistic, but I think given his position, it was the most apt response. Realpolitik, as exhibited by an outworlder. Well done, indeed.
And D'vorah, of course, is as Machiavellian as they come. These, and the kids were perhaps the highlights of the storymode for me.