How does join-lemmy.org pick recommended instances?

Currently it's recommending sopuli.xyz, an instance i've never heard of that requires applications to join, and beehaw, an instance that defederated from the other large instances.

That seems like a very poor front page for lemmy to get people to actually join and interact. I think a lot would probably think it goes against the philosophy to recommend a big instance like lemmy.world. But that's the least confusing to new people