Your observation may in fact be correct however I believe it makes no difference at all. In fact, the presenter even makes the same case........ regardless of whether you operate a light aircraft or you're the professional crew of a wide-body airbus, mistakes can happen and attention to safety is equally required from everyone (paraphrased - see the video). Ipso facto, no matter whether presenting safety training in an editing studio or in an auditorium, your standards must be equally high. The environment makes no difference.
The impact of this display is significant as it not only sets the bar for instructing standards far lower, it also exposes the culture at CASA, i.e there's not satisfactory attention to detail, poor peer oversight & review, poor quality control and generally a disregard for pride, reputation and workmanship.
How does a presentation like this make it onto the public record? Because no one within the organisation said its not good enough. That is very concerning.