My reasoning was similar.
Yes, UBL's death is significant to just about everyone. But it's not really intellectually gratifying or interesting, nor was much of the commentary surrounding it in the previous thread. There was lots of unfocused complaining about fallout from 9/11 including the TSA, DHS, wars, and political changes, but very little of it was new or enlightening. Definitely worthy of a flag.
Here, I find it tremendously interesting to see a (distant) eyewitness account of a significant historical event, given in real time over social media and not filtered by any other entities after the fact. Much more of the commentary here is intellectually gratifying as well. This was worthy of an upvote.