The author is writing about a specific time in rock history and asking why these men haven’t been held to account as others have for past deeds as they were well aware the age of the girls.
Your reference to underage girls as women is not just semantics and your efforts to divert the subject to teenagers who pass themselves off as older reveals your agenda. If men (or women) genuinely believe an underage person is older, this is a very different matter than knowingly fucking children, and it’s not something the author is obligated to write about in the interests of 'balance.’