touring the web, report from one of the pax said the Capt had advised they were entering an area of possible turbulence and had instructed the pax to return. Some did.. some didn't.
More touring.. about 2000 pax per year injured by turbulence. and in those cases 91% were NOT wearing seat belts.
CNN had some pictures of the interior with some pretty smashed up ceiling panels. Some oxy panels BROKEN and others smashed in. Considerable force obviously by the pax impacting the ceiling.