My understanding is many here are using ACR as part of the workflow. That's what I always use for my raw photos, and I love it. One important reason I like is because it can automatically correct many lens defects across multiple photos - distortion, vignetting, and chromatic aberration. CA is probably not very important for video, but distortion and vignetting are.
In your workflow, at the ACR stage, does it get all the relevant meta data (EXIF)? Is there any meta data in the RAW video? At the very least, one would want to have the lens ID, aperture, and focal length (for zooms) at the start of the video. Better still to have it for each frame. Are there any plans for such feature, if it doesn't exist yet?