Hmmm, propwash vorticity acting on tailplane would outweight any torque generated by the prop since rudder has a much larger moment arm. Don't forget prop angle will be designed to be level at nominal cruise speed, so this "effect" would not occur. Effect could only become apparent at stalling and near Vne when wings operating away from cruise AOA - again unlikely to be the dominant force.
If you have an enjoyable conversation with the pilots that flew classic fighters like the Hurricane, Spit and original Typhoon they will tell you that the biggest thing to learn was control cross coupling. That big gyro on the front meant that pulling back the stick would produce left yaw etc. That is definately where heli & fixed wing dynamics meet.