I think the videos serve as an introduction to some basic concepts intended to bring some clarity for further in-depth study. The video is much like the "front matter" to a chapter in a book.
Of course, the _REAL_ learning work starts when the student suffers through countless problems and proofs. This is no replacement for that. One doesn't learn math by passively watching videos or listening to lectures. That's the way it is and that is the way it will always be. This just provides a clear 30,000 foot view of the topic, a little motivation and background and, yes, some eye candy (and that's OK too).