Fox can jam it up their clackers as far as I'm concerned. In the time I've been riding, the only "genuine" sticker kit I've seen from Fox is the "heritage" decal kit, which were not to my tastes and almost never in stock anywhere, and that was years back now.
IMO there's very few bike colours/colour combos that actually look good with the "Factory" grey and orange decals, so either offer the custom decal service yourself or F-off. To my mind it would be different if they were selling knock-off clothing or what not as that would be an attempt to steal sales from Fox, but when it's something to customise (and show a little pride in) the product, offering a service/product that Fox doesn't and Fox isn't even willing to negotiate on a license fee for it it's pretty poor on Fox's part.