Playing the video game with the "Do something, anything, NOW!" mindset causes more problems than it solves
Agreed, in this case they would have been much better doing nothing - just fly the damn airplane, control its speed, attitude, on a single engine ATR climbs well enough, they could have waited minutes to perform checklist at higher altitude, etc. Also an ATR pilot from a European airline told me his airline had 3 incidents in which prop feathered inadvertently due to a fault - no one crashed, in most cases the problem corrected itself after they went through the checklist and they regained full use of the engine.
Too quick actions and wrong actions - in this respect repeat of AF447.