A point of consideration with twins is that it should be sphinctre tightening to know that on one engine, it might fail too. So, with heightened awareness let us all recall, please, that a 50% reduction in power is a Mayday ; not a Pan . "Nearest suitable " means just that. NEAREST. Time is not a factor. "Suitable" means only with regard to RWY length, app facilities etc. In otherwords, it is a field capable of taking you with specific regard. A farmers's field is capable but would not meet specified criteria.
Colleague lost an engine of a 737 in the descent to Orley. He returned to LGW (Base) and CP invited all of us, howling for blood, that the discussion should centre on "suitable" ! Oh really ! Mind you , offender was from same squadron, liked golf & was probably a ......................................oh no, here I go again !