Hi, I'm producer of Weeping Doll. Motion control is definitely something that will enhance the immersive feeling of VR game. However, we found that to do motion control and gamepad control both right, it requires 2 sets of interaction design and implementation. Due to limited programmer resource, we decided to release the gamepad version first, which can be enjoyed by all Oculus owners, since gamepad is bundled with all Oculus Rift, Touch is optional.
Looks cool will it have Vive wand or Touch interactions with objects though, something which was absent from The Assembly and diminished the immersion.