Quite shallow selection.
How were the videos selected vs. other videos on the same topic (and say similar length)?
What are the credentials of the curator to convince curator’s choices are indeed worthwhile?
The plan is to have a feedback mechanism that will let the viewers decide if a video should stay or go.
Where possible, attention is called to the credentials of the instructor (much more important and impressive than the credentials of the curator). The first few minutes of the videos are usually enough to convince a viewer that it's a serious video intended to convey information.