Why so? I'm into the technical rather than the aesthetic, and straight bladed forks would offer reduced weak spots as you wouldn't need to bend the tubes.
The problem is how to get the crown together when you make forks using straight tubes as you want some rake, that is solved using the design of the forks in the photo. However it requires a more skilled builder as the tubes that join the fork blades to the steerer require precise work to get the differing cuts and welds perfect. It's cheaper to go with a standard crown and just bend the forks. With the straight-tubed fork I should be able to make an ultra-light 853 fork.
Very similar to the one piece CNC crown used on the Wound Up composite fork.
There are other ways to create straight-bladed forks. Such as just running a tube horizontally where the crown would be. But 90' joins of tubes wouldn't really take advantage of the strengths of a tube, so the angular Yo Eddy way of constructing the crown area seems to be best.
I've also heard some very good feedback about the feel of Yo Eddy style forks, basically they come out as being wonderful to ride.
other option is to bend the top of the leg to meet the steerer then add the angle at this join rather than at the fork leg (i don't thing this is making sense) like the kona project 2 forks
other option is to bend the top of the leg to meet the steerer then add the angle at this join rather than at the fork leg (i don't thing this is making sense) like the kona project 2 forks