Well yes, that's what he wrote, but that's like saying: stealing can be done for variety of reasons, including by someone who intends the theft to be discovered? Killing can be done for variety of reasons, including by someone who intends the killing to be discovered?

I read it as "producing racist videos can sometimes be used in good faith"?

They're saying one example of a reason someone could fake a video is so it would get found out and discredit the position it showed. I read it as them saying that producing the fake video of a cop being racist could have been done to discredit the idea of cops being racist.

There is significant differences between how the information world and the physical world operate.

Creating all kinds of meta-levels of falsity is a real thing, with multiple lines of objective (if nefarious) motivation, in the information arena.

But even physical crimes can have meta information purposes. Putin for instance is fond of instigating crimes in a way that his fingerprints will inevitably be found, because that is an effective form of intimidation and power projection.

I think they’re just saying we should interpret this video in a way that’s consistent with known historical facts. On one hand, it’s not depicting events that are strictly untrue, so we shouldn’t discredit it. On the other hand, since the video itself is literally fake, when we discredit it we shouldn’t accidentally also discredit the events it’s depicting.