"The hubbub is centered around a complaint by Twitter that links shared on Twitter are not surfacing in the search results." I think this mischaracterizes this

"The hubbub is centered around a complaint by Twitter that links shared on Twitter are not surfacing in the search results." I think this mischaracterizes this complaint. I don't think anyone is complaining that the LINKS themselves aren't surfacing. That complaint would imply that their ought to be some influence between links on Twitter and the search rank of those linked pages. And I don't think anyone wants to see spammy tweets on Twitter altering skewing search ranking. Rather the complaint is that recommendations from Twitter are not APPEARING in the search results. And to that point: Why is it difficult for Google to index the fact that someone linked to a site (whether it be rel=nowfollow or not)? Why does this information need to be coupled with the passing of page rank?