Not only was it explained as to why he has to live with the Uzumaki's, but it also explains the future events we saw in the time skip. As in the connection between Kawaki and Konoha, Boruto, and maybe even why he targeted Naruto (thinking he's a fool when it comes to the new world sitting around the corner via ninja tech etc, with a ton of power that will get in the way). I would think people would actually enjoy this chapter considering that we will be getting a real rivalry and more focused development on the main plot. I'd love to see the Jogan make an appearance during training or some other situation in the next few chapters.. as it would make sense considering how negative Kawaki is.