I wouldn’t say that. There are still incompatibilities between Minie and jme3-bullet:
(1) Minie doesn’t support any Android or ARM platforms.
(2) Minie’s character control has a different name.
(3) Minie lacks KinematicRagdollControl.
(4) There are other incompatibilities in seldom-used areas (such as PhysicsSpace.addAll() and debug visualization) where I believe jme3-bullet was poorly designed.
I regard jme3-bullet and jme3-jbullet as legacy code. People shouldn’t use them without a good reason. But then, I’m a guy who still uses Java 1.8 and Windows 7, so who am I to judge?
By the way, do you have any suggestions on how to accelerate adoption of Minie?