I toyed with the idea of using something that would show you the keys... but those things are never totally reliable and always a bit of added complexity. So I decided instead to offer the web page approach.
I admit, I'm probably not doing a great job for complete Emacs newbies right now. I am unclear if I have to, there are a lot of starting Emacs screencasts around. This one is about starting with EmacsLisp, not really Emacs.
Having said that... if that's what people want I may go back and alter the structure of the thing so that total newbies could join in.
It would probably only mean having fewer expectations in the crash course.