Admiral's domain serves software that enforces access restrictions to copyrighted content. Including their domain in an ad-blocking list is a way to circumvent the restrictions.
Whether distributing a list of domain names counts as distributing "tools" or whatever the exact language of the act is, I don't know. This other subthread contains a better discussion: https://news.ycombinator.com/item?id=14991624
Whether distributing a list of domain names counts as distributing "tools" or whatever the exact language of the act is, I don't know. This other subthread contains a better discussion: https://news.ycombinator.com/item?id=14991624