If you know those are your only options why are you putting out a job description asking for something that doesn't exist?

If you didn't know ahead what your options were, and you were willing to accept someone who isn't an actual surgeon, maybe you would have preferred the person who whittles, has a biology degree, also is great with DIY videos, was a combat medic, AND isn't squeamish at the sight of blood, unlike me? Because she was turned off by the fact she didn't meet your listed minimum requirements; all you got applying are me and your nephew.

The only reason I can think of is as a smoke screen for hiring whatever candidate I feel most comfortable with, regardless of qualifications! If no one can live up to the standards then I no longer have to trust qualifications, everyone understands that I now must use my best judgement.