That was the original publishing model, publish to your blog, share the link everywhere, but then the socia media platforms started deprioritizing posts with links and search engines started deprioritizing small sites over large ones like Medium. When you can't rank in the search engines and you can't share your links on socials, what's the point of publishing to your own Domain? RSS feeds used to be an amazing technology. The "new" fediverse movement may reshape this landscape but I put new in quotes because really, it's no different than blogs at the turn of century. You publish to your blog with an rss feed. Content consumers choose an rss reader they like and they follow your feed.