Not saying it's the case here, and y'all probably already know this, but so many aftermarket manufacturers are so gun-shy to say "our product will work here, here, here, and here" when they know in the back of their minds that while yes, the (product) will fit/bolt-up, it may still not "work" for each and every user. Suspension is absolutely one of those playgrounds. They're factoring in machine weight, suspension travel, spring rates, shock valving, etc., when they come up with a product to offer. While we (know) most suspension components themselves are interchangeable, from a "will it it fit, yes" point of view, the rider may not be too thrilled with how the product actually "works" (performs) due to the minor differences in the machines suspension components as setup from the factory.
So the manufacturer just takes the safe way out and says "we don't offer anything for (insert application here)"