The problem with the decision (as highlighted in Stevens' excellent bit above - where I think "facial" has appeared by mistake for "facile") - is that it gives freedoms and rights to the rich and powerful that are illusory for the poor and powerless.
We know that advertising has effect. That is why capitalists pay to advertise their products, why the defective but well promoted can prevail in the market place over the excellent but less well promoted, and why it has steadily become necessary (at least recognised as necessary in other places) to police truth in advertising.
"If you tell a lie big enough and keep repeating it, people will eventually come to believe it. " - Joseph Goebbels.
It really is quite disconcerting to see the country that invented and coined the name of the snake oil salesman elevating the liberty of such salesmen to apply, through wealth and influence, the principles of Joseph Goebbels in the name of liberty and democracy.