This was my understanding of the camera settings, and somebody please correct me if I'm wrong. I do not profess this to be right. It was just my understanding.
When the Vision+ takes an image in RAW (.DNG is Adobe's RAW format), that image is taken totally independent of any white balance camera settings. The white balance camera settings only effects how the picture is processed for the associated .JPG that is created. The RAW image itself is untouched. For every RAW image, there is associated METADATA. The METADATA contains the settings such as white balance, color, hue, saturation, etc.. that Adobe Photoshop recognizes which effects how the picture is displayed. I haven't tested it, but I believe when people are implying that the RAW image is effected by the white balance settings in the Vision app, what's really happening is that the METADATA of the RAW image is being effected by these settings. The RAW image (with Adobe RAW settings at ZERO) taken with auto white balance, should be equal to the same image taken with any other white balance setting. Does this make sense?