Most of the hype surrounding it was when it was rather difficult to get an invite. By the time it was opened up it was all a bit subdued so not many made the jump.
On-One do a pretty beefy set at 420mm, relatively cheap aswell.
Very few ~415mm steel forks about as that's 80mm corrected so it's mostly carbon xc stuff.
This.
Santa Cruz have spent 6 years developing their own proprietary layup process with a specialist composites manufacturer that only make front triangles/frames for them.