All he is saying is, if an ISP gets a court order, that they can then block access to content like they do now, and the FCC won't go after them as a result.
It isn't a new power or an expansion, just continuing the current situation that exists.
With the rules, ISPs cannot block lawful content without consequence, but the rules don't prohibit blocking unlawful content. OTOH, if there are penalties for block lawful content, simple prudence will also lead ISPs to restraint in efforts to block unlawful content absent other rules mandating such blocking, lest they inadvertently block lawful content and are penalized for so doing.
In the UK we have the IWF blocklist for CP, plus the Pirate Bay block, and gradually expanding inadequately controlled currently optional "adult content" filters. The slippery slope is real, but has to be fought at a halfway point.
I feel like this is still a leap forward on net, and we should be happy for it.
I'd be very cautious about what shaping we permit to our network traffic. Laws are fickle, knowledge is power.