You get what you pay for. Another case of if it’s free, you’re probably the product.
If you think expressing outrage is the most productive thing to do here, we may disagree.
I think that there's a difference between prediction and reaction. I agree that, before the fact, saying "it's not free; you're the product" may be productive. However, after the fact, saying "what did you expect? It was free and you're the product" only implicitly normalises the behaviour, compared to "that was predictable, but nonetheless is not OK."
(You didn't quite say either of these, but I read your response as being more of the "what did you expect?" form. Of course, I might have been wrong!)