I'm also a bit disappointed, I just got the (now I know, dated) flagship set(spatha, claymore, centurion) and none of them use crate or aura. Have to use armory 2 for every mouse/keyboard function and asus rog 7.1 for the headset sound settings. Kinda wish it was all controllable in one app(aura, aura creator, asus rog 7.1, armory 2, fan expert all crammed into armory crate) where everything would act like the same brand. I've already spent a bit of time and cash to get all my tower rgb(almost all ROG) to play ball and now their premium peripherals wont play with the tower. The keyboard and mouse will play together but not with anyone else. The headset wont play with anyone and only gives you 3 lighting options(with no settings)...off, static, and breathing (in only red).
At the current moment, I believe we're stuck with with praying for an update or potentially buying gear listed on the armory compatibility page(found after my purchase). Heres the link to that page.
https://www.asus.com/support/FAQ/1042459