That is a largely incorrect statement that is loosely based on a single incident, not a trend.

The single incident was an individual in Malaysia who added an after-market finger-print based engine immobilizer to his car in 2005. The attackers threatened the individual with machetes, so that he would put his finger on the sensor, and then drove off with him in the car. The attackers later cut off his finger believing it would let them restart it without him present.