It shouldn't, and neither should Kali. Neither of those demand the professional level skillsset that BSD and suck less are mostly tailored at. Those communities

It shouldn't, and neither should Kali. Neither of those demand the professional level skillsset that BSD and suck less are mostly tailored at. Those communities are composed almost entirely of hobbyists in the OS and systems programming space, or in the case of Kali, not really even strictly an OS project at all and mostly just people repackaging various security related stuff (which is fine of course, there is a legitimate need for some of that, it's just definitively not OS development in the way something like OpenBSD is). In that sense, both of them are products, not projects, to the vast majority of users, and that influences what the core teams choose to focus on.