Pretty bad ! the Air France A330 accident isn’t a good comparaison in term of design philosophy. The 604/605 share pretty much the same stall warning system of the 601. It’s bullet proof and old technology. Barely relies on the ADCs, it uses an ALT input to fine tune the trigger point of the shaker and pusher. but other than that, it soley relies on stand alone analog AOA vanes and a proven analog stall computer. The 604/605 might not be a hot rod in the high thirties but it’s a proven aircraft, built like a tank, and has been trusted by major corporations like BOEING to transport their management for the last 20 years.