Is the typical 250 hour FO from one of the "puppy mill flight schools" able to safely land the airplane should the captain become suddenly incapacitated?
Dear Smilin Ed,
you can bet on it they can! Otherwise no company which is right in their mind would ever dare doing it.
Yes, LH has to earn money, too - but a ruined reputation due to deficient training is much more costly and the beancounters know that for sure!