I don't think anyone overlooked this. I haven't read through this thread in a while, since 2023, but some people, either in this thread or others on the subject, have argued against republishing Dark Sun because it might allow some tables to play it the wrong way. i.e. Maybe in someone's game the PCs might dabble in the slave trade themselves. I think we all realize we're free to do whatever we want at our own game table, so it's not been a particular area of discussion, we've been more focused on whether it's a good idea to publish anything for Dark Sun.
Social mores change as the years progress. Some things that are acceptable now might not be acceptable in 15 years. In 15 years, maybe the market will be ready for a Dark Sun setting. I'm not entirely convinced the problematic elements are what would keep people from buying the game. I think its biggest problem is it's too different from standard D&D for most groups.