Crab,
There are profiles in the RFM should there be an engine failure; these are practiced during the OPC and the pilot is recommended to follow them.
If the reliability of the engine is 1:100,000/flight hour (as most of them are), the probability of one of two failing is 2:100,000/flight hour; the probability of one failing followed by the second (from independent causes) is 1 in 10,000,000,000.
Most pilots of twins do not (have to) practice autorotations; if they do they are never flown to the ground (there is no need and it exposes the aircraft and crew to unecessary damage).
Because you are an articulate and experience aviator, most on this site pay attention to what you say; for that reason alone, you should be guarded and considered about any advice you give.
Jim