I fly, I agree with your other comments, however...
will want to yaw and roll strongly. The question really is can you control that or not.
Control is only one part of the equation. Absolutely you must prevent YAW which will in itself prevent ROLL. However, the other BIG issue is
Performance . Not much point having the beast under control as it slowly descends onto/into the trees, ground, building...other hard immovable object.
Practising a go-round at altitude will give you less yaw as the live engine will produce less thrust as you said but the aircraft will also perform less well compared to sea level.
The point of the exercise is to see how much altitude, or more importantly height
, is lost from the point the decision is made to abort the landing.