Hi,
there are quite differences in the case of an engine failure, flying a single or a twin ;-)
So the single engine helicopter pilot has not really many choices.
He needs speed and altitude to carry out an autorotation (ok, to some extend a vertical autorotation is possible)
The twin pilot has options.
If the departure path allows a landing - or transition into OEI (one engine inoperative) flight / fly away, he can choose this departure and saves a few seconds of time.
If in doubt or not possible, the twin pilot will choose the CAT A (or a profile close to it) for departure, regardless of the number of passengers - cause he wants to walk away in case of an engine failure....
Doing so, he would not only walk away but have a functional helicopter (except of that one failed engine).
It needs to get used to it transition from single to twin - but if your instructor has shut down an engine often enough - and you have experienced how stressless it is to land again / fly away at the proper height, you certainly start to see the advantages of a CAT A profile ;-)