SE over hostile terrain is your first hole in the cheese
This is an ''established truth'' regarding accidents, and I wonder if there is a statistic out there that show the rate of
prevented accidents due to having 2 engines, i.e. engine failure with a successful RTB or diversion on single engine instead of having a forced landing or an accident.
Not arguing that 2 engines is a completely waste, but there are quite a few accidents involving twins where the cause is pilot error.... and ironically quite a few in the UK which comes across as the most strict place to fly in Europe. The last one happened not too long ago....
You can argue that having a twin is potentially a greater risk as certain pilots may push out in even worse weather due to the equipment onboard, but not really able to use it. I can think of 3 such accidents with high profile in the UK alone, and I'm sure you know them well.
This is in any case a thread-drift, as there was nothing wrong with the engine in this sorry video!