How is that exactly? The compass thinks it's pointing NNW while the camera clearly shows it's pointing East. At many other points in the video it's 90 degrees off. How exactly does that show that the compass didn't "completely die"? If this was some kind of failure inside the compass chip, a second compass would not have been affected.
Also, do you think that your snarky, difficult comments reflect well on DJI? Do you remember what happened to Colin Guinn? Just thank me the suggestion, pass it on to the relevant engineers, and be done with it. That is all you need to do here. It should be embarrassing enough for Frank Wang that his own support staff doesn't know how to interpret flight logs, but if you are going to be misinformed, at least keep quiet about it.
Well I'm of course a noob, but shouldn't you actually ask for having not two, but three compasses? Otherwise how would your magic find out which one is likely to be wrong?