The blog author doesn't actually make it clear if the line > You are not entitled to sex with anyone, but people can have preferences that are problematic. is

The blog author doesn't actually make it clear if the line > You are not entitled to sex with anyone, but people can have preferences that are problematic. is spoken from their perspective or the book author's perspective. It's not a given that they agree with that sentiment. So it might be that the blog author briefly entertained their question of entitlement as a consideration before arriving at the conclusion quoted above, or they still favor it.