I agree. I am sure that the hack boosted the morale of many protestors. It is tragic but us normals have no way of determine the degree to which it was inside job. Who is going to trust the CIA, etc if they deny it?
Ya, we can't really know, but I think it's fair to say that powerful though the CIA is, they can't synthesize these kinds of protests from nothing. So, even if the CIA did hack these TV stations to aid the protesters, it's something that could just as easily have been done organically too, so I'm not sure it really matters whether they did or didn't.
Especially when there are US agencies posting videos like this one: https://www.youtube.com/watch?v=VA4e0NqyYMw