In my opinion, nowadays the Olympic Games are more of a commercialized industry rather than Competitive Games to have fun. As you said, there are some pros and cons in the addition of skateboarding in the Olympics. It's gonna present the sport in a great amount of people (which will also bring new people in the sport) but, it will also b*stardize the culture of skateboarding. I think that adding skateboarding in the Olympics might also break the stereotype of the "punk" skater and make the sport more mainstream. The point is that even if skateboarding would become that mainstream, it shouldn't lose it's spirit and end up like football(as you said). :)