I think, without looking at the site at all, that this could be a good thing. Some peer-review of the material on occasion would be nice, but this could be GREAT for helping people who are homeschooling their kids to be on top of the newest teaching techniques and latest knowledge, if there is as much elementary education there as she says.
I think adults looking for college-level material of a certain type might still prefer podcasts, but that would only be because you can listen to them in the car or something and don't need to sit in front of the computer. Can you download these videos (built into the site rather than third-party)?