Who decides what the tariff is?

Honestly? Why not. Not every country in the world is going to pass a law this silly and for those that do, do you really want to be in a business environment where the National government puts you in a position of dictating what services you must also offer in order to continue doing business at all in the country? Like what if Google just decides for whatever reason at some point in the future they don’t want to continue to offer Google News anywhere. That would be their prerogative. Whether they spun it off, sold it or just shut it down are all valid business choices they can make.

At least it’s easier in Canada where Google can go “okay, we’ll just remove you from our index that we included you in without charge that if you wanted to, you could have removed yourself from at any time.”