Won't the "link tax" simply result in new services publishing an open licence, similar to GNU? It does seem like an open goal for the likes of Google, Facebook

Won't the "link tax" simply result in new services publishing an open licence, similar to GNU? It does seem like an open goal for the likes of Google, Facebook and Twitter, as I can't see news sites wanting to risk losing vast amounts of their traffic, however I can't see why they would want to manage potential hundreds of licences with small publishers and aggregators.