For me, the bootc project is one of the most exciting things happening in Linux right now. It would be nice if projects like Debian adopt it as one possible delivery format for those who prefer the atomic containerized workflow way of doing things. There is so much to be gained from a stability standpoint vs how things are done now.
Side note: Judging by what I see on Reddit, the ability to theme a desktop is one of the top reasons someone develops a personal interest in Linux to begin with, so no need to justify that in my book.