From what I've read about interesting evaluations of certain divert airports in Siberia, I would not want to be flying almost three hours on one engine through winter skies with a tribe of women/young children onboard while heading to an airport which might have the electricity shut down, planning to land a very heavy plane from Japan onto a runway (with functioning navaids and lights?), which we assume has been plowed free of snow, and a cozy, warm (?) little terminal with food and water available, possibly an airport fire department and medical clinic...
Heck, many of these things might not always available or reliable at certain dispatch-required driftdown airports in the western US! How about in poor, bankrupt countries? The airlines might have been better off using planes with at least three engines, but then some airlines became unhappy with the limitations of old DC-10s (possibly paying three cockpit crewmembers, versus two), and the payload/range figures on the MD-11s, despite having one less pilot to pay.