Probably because their website is not up to date. It's a new headphone. I don't think that they have the HP200 listed either. For some companies in some parts of the world, a website is still an after thought, or difficult to update if you are a small company having to maintain the site in two languages.
Definitely great that you can demo those. I thought they sounded really good. Better have your wallet ready. The headphone you can hear and like always beats out the one that you've only read reviews of