If a system is in place and continues to do a thing after concerns are brought up, then absolutely, that's an argument that can be made; but, for each new class of mistake a system makes, you can't just say that that's what it was designed to do.

It's unfair to the designers, the people in the know, etc. You'll never win people over by telling them the thing they attempted to create, with many years of sweat and tears, was _designed_ to do something nefarious if it wasn't.

If they don't change after evidence to the contrary, then this can be brought up; but before then, it's inappropriate.