It is pre-mature to say this. Why would they say "AutoPilot seems to have made a grave error here, and steered the car into the barrier." if it is possibly not

It is pre-mature to say this. Why would they say "AutoPilot seems to have made a grave error here, and steered the car into the barrier." if it is possibly not their fault ? If indeed it was auto-pilot's fault, they will likely put the statement out later.