In case the remaining engine quits (and you don't know exactly why the first one stopped) you should fly a profile that allows for that to happen and still permit you to safely enter auto and carry out an EOL.
I agree with that statement for the enroute phase of the flight, but ( even in my military training ) the final landing should be carried out according to normal OEI landing profile, no autorotation at all! ( and we practised ARs a lot)
skadi