Obviously I can't speak for AK, but maybe she believes that she has been epistemically lucky. Compare the religious case:

"I had this experience which gave me evidence for divinity X, so I am going to believe in X. Others have had analogous experiences for divinities Y and Z, but according to the X religion I adopted those are demonic, so Y and Z believers are wrong. I was lucky though, since if I had had a Y experience I would have become a Y believer".

with philosophical cases like the ones Alicorn discusses there:

"I accept philosophical position X because of compelling arguments I have been exposed to. Others have been exposed to seemingly compelling arguments for positions Y and Z, but according to X these arguments are flawed, so Y and Z believers are wrong. I was lucky though, since if I had gone to a university with Y teachers I would have become a Y believer".

It may be that the philosopher is also being irrational here and that she could strive more to trascend her education and assess X vs Y impartially, but in the end it is impossible to escape this kind of irrationality at all levels at once and assess beliefs from a perfect vaccuum. We all find some things compelling and not others because of the kind of people we are and the kind of lives we have lived, and the best we can get is reflective equilibrium. Recursive justification hitting bottom and all that.

The question is whether AK is already in reflective equilibrium or if she can still profit from some meta-examination and reassess this part of her belief system. (I believe that some religious believers have reflected enough about their beliefs and the counterarguments to them that they are in this kind of equilibrium and there is no further argument from an atheist that can rationally move them - though these are a minority and not representative of typical religious folks.)