There is some truth to this. For in-person lectures I could just show up to class with a general theme and blather onto the whiteboard, whereas online, all the students want text lecture notes, slides from the lecture, they don't ask questions during lecture, so they are confused, taking time later.

If you spend time editing together a pre-recorded video, it can easily triple the amount of work. Even if you go with the pro-style one take, you need to rehearse and have a good plan in place to make such a video.