Perhaps his objection is a bit different( or maybe am projecting). It may feel more wrong that you are talking about it in a forum, rather than engaging with her privately
Going by post doesn't seem to indicate she is former. In the last paragraph she mentions her concerns about escorting in the future given her blog detailing the industry in this detail.
She’s posting in the replies here so maybe she’ll say whether this feels like an affront to her humanity. Still, this conversation around why it might be icky seems philosophically meaningful.