Extremely flat profile and bridle control on the trailing edge. It is nice to somebody trying unusual things. My first guess is that it wont work, but I give them credit for trying something new.
Is pictures real or just PMUish troll? But why would TE bridles not work?
With usual single point trailing edge supported LEI usually when you pull the bar on jumps then wing span of trailing edge comes narrower. This causes fabric of trailing edge to loosen a bit meaning that center of the kite AoA will not increase as much. So potential power is lost because of kite deformation.
I guess that Flysurfer could be trying to fix that whole trailing edge will stay better in form. They are experts in analyzing forces and cloth behaviour.
But I am waiting for real reviews..