Sometimes I hate social media because in the end, maybe two posts out of a hundred are even in the ballpark, and maybe one in a thousand actually illuminates.
Those that can't see a classic departure stall in this video either have never done one, or just fly by the numbers and got hired to read checklists.
It's easy to see the pilot working the rudders, that when the right wing broke, he came out wings level, which belies that he didn't spin it in, because he must have added power to get some air over the wings. Hence why I think it was a derate departure, stall, maybe the slats retracted...notice the gear still down? Never got positive rate? At that altitude?
Even if the cargo shifted, the aircraft pancaking in wings level belies that if power was added early they might have been able to forstall a stall to begine with.
Let's hear it for derated power to save engines. Such a great thing.