They are in a difficult position because the entire point of their DNS resolver is that it blocks malicious sites (malware, phishing, etc.). Very easy for Sony to say, why can't they add piracy to the list? They "refuse to alter or lie to you" in their DNS responses - how would a malware block be lying if those other blocks are not?

I guess the issue is that they are ordered to block it for all users, not only those particular users who picked some particular lists.

And nobody would pick a piracy list, why'd you do it as a user.