Ah, this explains why I haven't been able to get it to work right. I was using Swarm so the fact that the formation component wasn't working wasn't obvious. I was fixated on trying to determine why my leader never moved to the target, I am assuming it's because the formation was never being completed since the objects were trying to get into a 3d position which was ultimately impossible...
You should probably list the lack of 2D support in the Store description, since your Movement asset does work with it, and your screenshots for the product look rather 2d. Being out $15 is a nonissue for me, but having wasted a full day of productivity trying to figure out what I was doing wrong is pretty frustrating. The lack of documentation also makes it extra time consuming in trying to determine if it's a me or you problem, since there's no clear reference point for expected behavior vs configuration aside from trying to reverse engineer your sample scene and just hoping that I am not overlooking or misunderstanding something. In this case, I did not understand that this would not work for 2d movement lol.