I have seen the limited video, and have also read other accounts of the events leading up to and after what is captured in the video, and anyone saying it is a “pretty clear case of self defence”, before any findings of any sort of detailed investigation and analysis of the full events have been released, is being intellectually dishonest (with themselves and others).
Had they said “it *may* be self defence, I will have to read more about the full events on either side of the video, and see what comes of the investigation” it would be much less problematic.