This is an extremely misleading interpretation of the article. The article says Tesla has only reviewed the basic crash logs, which don't contain information about autopilot state. The detailed crash logs, which have this information, have not been received because the antenna was damaged in the crash.
So Tesla has only reviewed cursory information that says nothing about autopilot state; therefore, they can state they have "no data [suggesting] autopilot was engaged". But you cannot conclude autopilot was not engaged, because there is critical data missing.
Very misleading.