I have spoken to the owner about this before and having worked closely with KHE in the past, I think the honest truth is the setup costs are just to high. And based on how many they sell, it's just not possible at the moment.
Also remember that the pivotal design is sold through velo seats, and KHE has enjoyed a long history making seats with cionlee? (I can't remember how they spell it).
But I can say if it was as simple as just getting on with it, it would have been done long ago.