These ones left me confounded for so many reasons.
First, it took me until the second "story" to realize that they were being narrated from Sora's perspective, so through the YX one I was totally confused why he was talking about himself in the third person like he couldn't recognize himself. Terrible writing.
Second, what wasted potential! As bland and vacuous as these "stories" are, the norts could have at least been the most interesting characters to provide some introspection on. Frankly, I don't need any more insight into the thoughts of the heroes—I was actually somewhat intrigued to hear what the various incarnations of Xehanort feel about their own existence in relation to the old man who's using them all/himself for his own ends.
Third, like what everyone is saying, absolutely NOTHING of note here. These should not have been written. They offer nothing, they ARE nothing. They are a waste of language, breath, time, and mental energy. I refuse to even call these "stories". They are brain farts. Kingdom Hearts-themed brain farts, pure and simple.
I feel so bad for any poor suckers who got cheated into buying this trash, and might I just say, SHAME on Kanemaki and Square Enix and whoever else was involved in the publication of this drivel. Just like Union X gatcha, this is yet another deceitful trick to squeeze more money out of their inordinately loyal fans. As a fan, a writer, and a consumer, I say this is absolutely disgraceful.