I'm the author of the site and totally agree that RSS is desperately needed. It's next on my list.
These videos cover most of the basics and show the true power of vim. They would be a great warm-up course before taking on OP's videos.
I think RSS is the greatest thing since sliced white bread, and it was killing me. I literally once spent an entire unemployed day reading what was in my reader. When I got to the end there was more, and I just kept rolling that rock up the hill. So that particular tool is wide open for abuse by me. "You can just skim the subject lines" never meant anything to me, it's all just so damned interesting.
My solution was to kill my reader, put a few "daily" bookmarks in my toolbar (this is one of them), and put a bunch of sites in an "often" folder which I'll browse when I have time. Which works better for me. Most people probably don't have this problem.
If I find a new feed I want to subscribe to I have to choose another to remove in its place. For instance instead of following different blogs which may occasionally discuss vim I follow the RSS feed for the VimLinks twitter account as my sole source of vim news.
This means I only follow the sites I'm most interested in but I spend longer reading new articles from them. For everything else, if something is interesting enough it usually bubbles to the top of HN or twitter.
Our generation and probably generations to come will have to think of creative ways to manage the large ammount of information we are confronted with on a daily basis. Perhaps coming to the realization that you cant follow and stay current with everything (I am not there yet).
I've found that with sufficient narration, I don't need it.
For example searching how to save a Vim-macro yields this very useful result: http://vim.wikia.com/wiki/Macros
On the other hand, watching a person do the task can be a nice "breakthrough" from the eyes of a noob.
For example, I've watched some https://www.destroyallsoftware.com/ videos. I could have read an article that says the same things, but you get a nice context for the reasoning. You see the thing happen. It's nice for the programming perspective, perhaps not for looking up certain macros.
Forcing myself to use Vim everyday for everything for a few weeks (and all the vim-related googling that ensued) sure helped me a lot more than these screencasts.
But again, those are very exciting and it sure helps to stay excited when you have a mountain to climb.
I guess there are many worse things to be obsessed with :-)