Dozy.
Their training no doubt did include recovery from STALL, if not the 330, other airworthy examples that would translate to 330. The training that lacked was high altitude manual handling, and a complete understanding of the UAS. The rough handling can be laid at the PF, but the lack of a proper syllabus to include a fully understood UAS was not given, if even available. I think with gentle handling the rest may not have happened. There is a very suspicious lack of training re: STALL recognition, but as said, it shouldn't have STALLED.
No?