The most interesting thing to me about "Facebook's intrusion could have easily been blocked, but plaintiffs chose not to do so," is that it implies that users have a right to block tracking code.

If that isn't already enshrined in case law, hopefully it signals that we will not get laws passed requiring users to allow tracking, and the courts will hopefully invalidate terms and conditions requiring tracking.

Having lived through the rise of DMCA, I live in fear of an emboldened industry getting laws passed that make the use and distribution of blocking software illegal.