I don’t think Disney will be hurting for guests because of this.Actually it does change it from a positive experience to a negative one. If not in actually time period taken away from the enjoyment of the parks, then in the perception that Disney is willing to alienate approximately 15% of the US population and 20% of the world population.
100% of guests will never truly by happy, but you're now guaranteed that as many as 20% will not.
Also you had to walk to specific sections in the park before this to smoke so you could’ve been on the other side of the park and have to walk to a smoking section. So either way taking time out of the day for it.