The article is misleading, as it doesn't say what the judgement actually said:
The judgement was that arbitrary, global blocks, at the ISPs expense are illegal - i.e. an ISP cannot be ordered to block freemp3s.com indefinitely, for all its users, and at its own cost. (As happened in the BT / Newzbin case)
However, if the record company wants to go to an ISP and say, "Please block access to freemp3s.com for your customer Homer J Simpson pursuant to the enclosed court order, and invoice us for the cost of the block" - then that would be perfectly legal.