"... If the electronics survived the cold soak of interplanetary space and the G-sensor still worked then Beagle-2 should have jettisoned its heat shield before augering in. After that, things would be difficult to predict. If it tumbled then it might have scattered bits of itself all over the place. If it shredded its parachute then it might have deployed its airbags which would have immediately sheared off and then augered in..."

Sound like you have a few events backwards. The heatshield jetison was after the pilot chute deployment, and during the activity of falling from the back shell and deploying the main chute.

They certainly did not screw up the entry vector - the same engineers who put MEX into an exact corridor for the MOI burn put that same spacecraft on the exact corridor for B2 entry.

Doug