I think she was just using "nepo" as a broad brush to differentiate those who go out of their way to apply without any contact with the talents and those who the talents may have put in a good word for or encouraged to apply/reach out to Fishman. Just having some hand in maybe connecting some dots together. I'm not really a fan of using the label "nepo" so casually like that, but I guess it's easier to get your point across rather going into too many detailed explanations. I mean, this is how Lumi, and by extension Yuri, got into Phase themselves.
As you said, at the end of the day, it's Fishman's decision, which she did say, and we know specific examples of people he's turned down at points in time.