Personally I like the idea that the chapter is posted by a fan of the series so that they're relatively likely to respond to comments on the chapter. Y'know, have the idea that at least one person is invested in the thing being posted.
Edit: in addition, if I wanted an overview of every single new chapter, I'd just go to mangadex. I'd like an overview of chapters that people are actually interested in discussing, instead.
Is this new? Did Kishimoto really wait until 2023 to write this epilogue when there's already a bunch of Boruto stuff published?