And the pièce de resistance has to be the gathering of giant leaders with no explanation for their presence (and while the hill giant is absent - though that actually dovetailed neatly with events for me) but still, the ordning is broken and yet giants are still sitting down to tea together (effectively) - why?! No reason... but of course my players ask that obvious question, leaving me to scramble for some plausible answer!
Area 14's description explains why the other giants are there. Whether or not a DM feels that explanation is sufficient, the motivation for the meeting was not ignored.
EDIT: Sorry, quoted the wrong post at first.