You’re patently out of your depth. The only similarity to your Cessna experience is that both aircraft stalled. The crew had erroneous information. And failed to revert to basics to recover. Repeatedly. Until the situation was irrecoverable, which, the Captain eventually realized but was in no position to do anything about it. Either through a lack of training, or command gradient hence inadequate CRM, and a design shortfall. To add to the confusion the stall warning kept disappearing and reappearing as they burbled in and out of stall with half arsed recoveries and in addition Les Wombles at AIB didn’t think anyone would achieve those sort of speeds over a prolonged period and removed the nuisance component of the warning. To further compound the issue the weather was appalling and entirely conducive to this sort of icing. The upshot was redevelopment of the ADC’s/ air data heating and repeated exposure for all pilots, be it Team A or Team B, to these sort of UAS events in the simulator. And a review of the inherent culture at the company concerned.