Considering this, I think the videos being short may have some risks, I have some suggestions.
Ideally, I think the videos should explain things at least as good as this, with really nice graphics like this or simple ones like this to increase attention, subtitles in different languages (when appropriate), and use analogies for simpler communication.
Some considerations and questions:
Unfortunately, I'm still a student so it doesn't apply in my case.
This post mentions learning more about EA as a way to become a better charity entrepreneur, maybe the same principle applies to getting an EA job.
I would suggest auditing the course and (only) watching videos about the unfamiliar topics.
Although, you could make video versions of conceptually-like articles. Which are quite short. But I suppose the difference is that it is not aimed at the general population at large, at least not to the extent of regular short videos I've seen before.