At least there will be video evidence that the court can use to decide, since deleting the video cannot be justified on this basis. They could delete the video

At least there will be video evidence that the court can use to decide, since deleting the video cannot be justified on this basis. They could delete the video and pretend that it was never taken, but that's no different to what we have now and what we would have even if there were no exceptions whatsoever.