Regarding EF during the take-off roll:
We all know it requires instant corrective rudder while simultaneously rapidly closing the live engine throttle.
In fact the student's corrective action must be perfect and instantaneous at first go in every respect.
There is one alternative Centaurus - prompt selection of live engine mixture to ICO. That's the instructor's job. Generating the EF at a speed that allows time for the instructor to do this without running off the runway is also the instructor's job.
Better to do this in a simulator as you suggest. But if impossible, an instructor with a hand over the mixtures is at significantly lower risk than one without.