Chris, I'm not disagreeing with you. On the ground it's called weathercocking (the tendency of the nose of the aircraft to swing into wind due to the aerodynamic pressure on the vertical tail surface) and in the air it manifests as drift, where the nose of the aircraft is pointing in a different direction to the direction of travel.
And the modern equivalent is the CRP5!
And moggie, as FE states, in the certification there is no "critical engine". There definitely IS an engine that will cause a worse situation, but to call it a critical engine might tend to mislead!