It limits stabilization to two axes, but now any lens is essentially stabilized. And it also lets them do some tricks, since it's so integrated. One is to do sub-pixel sensor shifts for higher res photos, and another is to do astrophotography tracking when GPS data is available.
Much more limited in scope than a full tracking gimbal, but not bad considering it's built into the camera (earlier bodies had a GPS attachment that slotted into the hot shoe connector): https://www.lonelyspeck.com/pentax-k-1-mark-ii-astrophotogra...