Does this mean they do not have an endurance disc equipped frame?
I don't think they do. As well as an incredibly complicated naming system they also make it tricky to distinguish between 2015 and 2916 frames. When I was looking I knew I wanted endurance and 2016 as the 2016 is supposedly much better, but you had to look for visual clues. In the end I went with Cannondale because I could see what I was getting and the bike would be with me within 2 days.
P.S. - still no refund from Canyon and no cancelled order confirmed.