One thing for certain - I don't know if this is new or if it has always been there - but no Dr. Dao incidents are allowed to be recorded:

Prohibited conduct
Without limiting the generality of the foregoing, the following constitutes prohibited conduct where it may be necessary, in the reasonable discretion of the Carrier, to take action to ensure the physical comfort or safety of the person, other passengers (in the future and present) and/or the Carrier employees; the safety of the aircraft; the unhindered performance of the crew members in their duty aboard the aircraft; or the safe and adequate flight operations:
...
h) While onboard the aircraft, the person is filming, photographing, or recording the image by any other electronic means of other passengers and/or crew without the express consent of the person(s) being filmed, photographed or recorded, or continues to film, photograph or record the image of other passengers and/or crew after being advised to cease such conduct by a member of the crew;