DNS resolvers getting sued should stop resolving domains/properties of the companies suing them too when they are forced to take these kinds of actions/steps off the back of a legal decision like this.
Obviously
The problem is that these types of companies are started by naive idealistic techs who only know how to play by the rules and can't figure out why people would misuse their products
They were very well described by the "rubber hose crypto" XKCD
(Not that I don't think a DNS company stays at the same level of complexity - both legal and technological - as a VPN company, but still)
Keep resolving, but instead of resolving multiple A records, resolve just one. Fuck that one server in particular.
Delay updates by 1 week.
Answer randomly with the up-to-date or the out-of-date records.