Aircraft makers can't make the perfect plane but they can put in place systems & procedures to give the pilot/s a fighting chance when things of importance go haywire!
It's the events after the initial problem (most likely critical flight parameter indications) that will need very careful review. The AF447 is the perfect Eg of events that destroyed the plane & lives of many when in actual fact there was no need for it to end like that!
Hope they get to the bottom of this terrible event & everyone can learn something!