So its a 4 bar, with an extra link to control spring rate and put the shock as high as possible?? The link on a 4 bar is generally used to control shock rate and antisquat, why ad another one for complexity and weight!!
The demo is awesome bro, the mondraker reminds me of the older Demo 8 from 2006 rated 10/10 and Kyle Strait won Red Bull Rampage on one then. Checkout my old Demo 8 in white on my profile of Bikes Owned.