Legal theories work entirely differently than technical strategies. Lawyers can spin this failure into political ammunition the next time SOPA or TPP (remember that one?) comes up: "we tried to use the existing laws to seize DNS records, but dontcha-know, they immediately circumvented it because not all DNS authorities work together. That alone could have prevented $X00 million in losses. Thats why we need a new law to ____, and ____, and stop ____. and we need all countries on board with this binding trade agreement."