Yes, but I agree wholeheartedly with the recommendation that you are responding to. I clicked on the first big “play” button I saw, thinking it would be a quick demo. I then started skipping through the video to find the meat. In particular, I expected to hear someone’s cloned voice and say, “wow”. When I realized it was primarily some stock footage and some silent recording of the UI, I moved on, and THEN realized that there were demo voices.
yours is a solid point -- would be nice to have that "wow factor" right off-the-bat
They are not even visible on the first visible page on a mobile device.