I think defining broadband access like this allows them to move certain legally required things to the internet age. I believe there are a lot of small laws in Finland that say what the radio channel, newspaper or Tv channel should provide. For example we actually have a law that during icehockey World Championships our own matches should be broadcasted for free.

If enough people legally have access to a broadband internet, its easier to make laws to offering certain services through the internet (certain information delivery, services like taxes and maybe voting in the future).