Original pilot

I've read there was an original pilot showed at Comic-On that differs a lot from the final episode that was broadcasted by NBC.

What a pity! It seems the original pilot was much better! Why did they change it?

http://www.polygon.com/tv/2017/2/3/14483658/powerless-nbc-san-diego-comic-con
http://io9.gizmodo.com/the-10-biggest-changes-powerless-made-from-its-original-1791963975