That misses the point. NN protections were enforced even if they were not codified by the FCC, through the courts. Once they were hard coded it made it a lot harder for ISPs to cheat. That's all 2015 was about, making it harder for ISPs to throttle so we didn't have to sue every time. It wasn't about putting practices into place that weren't there before, it was about hard coding practices that were enforced for years so that it was simpler to enforce. That's all.

The new ruling by the FCC does the opposite. It encourages the ISPs to cheat in a blatantly obvious way.

The concept of net neutrality is as old as the internet itself. Are you saying facebook was founded a decade before the internet was invented?