The tense relationship between authors and publishers is as old as books. Publishers want to move lots of units. Authors want to realize their vision. Sometimes the two go hand in hand, and sometimes not. Pretty common in every creative industry.
I don't want to trivialize and dismiss the author's experience but she has no qualms doing the same to her fellow (white, male) authors, who apparently have it so easy attaining credibility and earning a living practicing their craft.