I repeat, one of the few facts we have is that the squawk code as set in the wreckage was 7760.
It is possible to state what was set before problems, earlier in the flight, as should be on the radar recordings, which were witnessed by more than one person as far as I am aware - so not only should they have existed but they did exist.
So what is so wrong about asking (officially) for this information?
Why not use your energy/contacts/influence to clear up this one, simple point?
With all the discussion that has taken place over the years, is it not worthwhile addressing the known anomaly of the squawk code?