isnt't that the reasoning for forcing a ISP to block a particular site? if it's interpreted as that once, thanks to incentives from the recording industry, why

isnt't that the reasoning for forcing a ISP to block a particular site? if it's interpreted as that once, thanks to incentives from the recording industry, why can't it then be called out later? (this is base on watching law&order, not real life, that's why i'm discussing it here)