Hi,
The latches that must be closed to secure the cannisters are plainly open. Any proximate cabin crew member worth his/her salt would have secured them before sitting down, if severe turbulence was expected.
That's a very good interpretation of this picture .. good deduction
As a VFF I fly in many parts of the world ... nice aeras and bad aeras ..
I experience more than enough very bad turbulences .. (mainly at the same aera of the AF447 path and also in Asia and India aeras)
Those very bad turbulences never come suddenly but gradually .. for finish in a apotheosis (rice on the ceiling .. etc ..
)
So .. what about a foolish speculation .. that in fact ... AF447 was not in very bad turbulences at the time of the event ???