thanks everyone for the replies i owe u a big time
but im still not convinced as to why would the aircraft be stalling, perhaps getting confused and mixing between airspeed and thrust because as far as i know when we reduce thrust the aircraft sinks , and a thrust reduction must be accompanied with an airspeed reduction so the aircraft is supposed to be pitching down not up .
i just need someone to expalin it to me aerodynamically so i can be persuaded i mean it doesnt make sense really that if thrust reduces the aircraft picths down but if airspeed reduces the aircraft piches up when they both happen simultaniously ( thrust reduction and airsped reduction ) .