Kbin is still community/magazine focused at the moment. It integrates better with mastodon, allowing you to follow people etc, but it seems to really be about pulling mastodon content into the magazines as much as possible. For instance, there is no way to view a feed of just the posts of the people you follow, AFAIU. I’m not aware of there road maps on this though.
Platform diversity is valuable for the fediverse, as no platform can make everyone happy, so two platforms having the same general feature (as lemmy and kbin do already with communities/magazines) is not only not a problem but a good thing.