For what it's worth, I didn't know it was sped up, and I have taken calculus and advanced physics. I had no frame of reference for how high the rocket was when the video started. It wasn't that I thought it was realtime, I just didn't know if it was sped up or if the rocket was just way faster than I would've imagined. I was quite glad that someone pointed out it was sped up, and I think as a matter of journalistic integrity folks should generally mark when things are sped up or slowed down.
I am mentally handicapped though, so you got that right.