That’s fine. I also think it works okay at the moment, but I’m a critical person and I think this could become a problem in the future, so I think about how it could be solved.
If I want to browse content from another small instance, I just subscribe to their communities.
I’m just not sure the average user does that. Especially casual ones.
Also I think the average user doesn’t want to use third-party websites to discover new content, especially on the phone. These services just appear to me to be workarounds.