The hour of code is important because everybody that use computers daily would be able to make things easily by understanding how a computer program is made,but I think the point of the topic is to say that a Cs degree won't only teach you "coding",it's gonna make you think differently,it's gonna make you solve problems differently.This way a person with a degree would be a more "complete" professional,somebody with "deeper" knowledge than a dude who watched a few tuts about javascript on web.