Originally Posted by
Jet Jockey A4
It seems the passenger was videoing the problem while they were taxiing to the runway prior to the takeoff.
If so instead of continuing the video, why did he not say something to a crew member or at least have his friend shout out to the F/A that we think there is a problem with the wheel?
Two possibilities come to mind. First, it's pretty common, when shooting photos or videos to become immersed in that process, wanting to "get it all" and not thinking of anything else. Second, and this may sound unlikely, although I don't think it is: The passenger may not have actually understood that there was a serious problem until the wheel actually fell off.