Came in here to criticize the concept of a smoking ban based on comparisons to prohibition and the "war on drugs" in America, but reading through the article it actually sounds somewhat reasonable. Using regulation to reduce nicotine content sounds fantastic - no one should be forced to smoke if they don't want to, and making tobacco less addicting might actually help to accomplish that.
Still not a fan of prohibition as a means of addressing health issues, but I suppose it's different when your country has universal healthcare.