Although i am surprised by it i do not 100% agree with it. Let me explain:
It is my opinion that an ISP is a provider and should not block anything on anything at all. Each and every port or possible form of communication that the ISP can provide should be provided, as well as all information. Torrents, VPN, Vlan, SSL, SSH, Telnet, FTP, SFTP, UseNet, you name it.
The end-user though, should (be able to) decide what to block and what not to block.