But seriously, there's the RSA.
Geissele makes triggers for the SCAR and (that horrid abomination) the ACR. Which makes this the first Geissele trigger for a non-AR they have introduced for a rifle that's MSRP is under $2000 (MSRP on the ACR is now below that mark, but it wasn't when they introduced the gun or the trigger).
I would guess that they don't see very many people dropping $300-500 on a trigger for a $700 gun. Most people putting $2000 into an AK are going to be getting a hand-worked trigger from somebody like Krebs or Rifle Dynamics, anyway, so no market there. Particularly given the competent and serviceable, if not fantastic, options in the form of the Tapco G2 and the Red State Arms trigger groups. Even the factory Arsenal triggers aren't bad.
Hell, the Tavor is probably the first trigger they have made for a platform that genuinely needs a nicer trigger. (And anything less than Geissele blasphemes against the rifle's IDF roots and its M16 and Kalashnikov progenitors.)