Its pretty good advice.  

I don't think the video has to be removed entirely, but it shouldn't be the lead.  Leading with a 5w's, a nicely done about section, or something like http://www.nxttechnologytree.com/ (except instead of a web of confusion it had maybe 5-10 neatly organized and arranged points.) would be better. 

I actually favor a technology tree style format where there are little sections are bullet points that can be clicked and expanded for more information.  I would have one on POI, Delegated Harvesting, M of N, Easy to build on API's, Nodes (Eigentrust and Node rewards), Mosiacs/Namespaces, and NEM's infrastructure.  Maybe get a nice symbol and bullet point for each one, then it is clicked on and an animation or pop-up explains more in a short summary with a link for even more info like a full blog or something.  Put that section right underneath the city landscape and then the video under that and leave the rest of the page alone.

Something like that as a focus of the website would help out some I think.