Yep - very puzzling accident.
Clearly a highly experienced pilot apparently operating to SOPs - LTRE wouldn't seem to be a factor.
An almost brand new and very sophisticated machine - that one would assume was impeccably maintained.
Could there have been some sort of one off assembly or manufacturing fault that caused a catastrophic drive shaft or gearbox failure?
But then you'd think there'd be multiple independent checks of components at time of assembly?
Very strange...