The power of DMCA is only because of Google. The day we find an alternative to this great search engine of our times, DMCA will render itself toothless.
I can also understand if the results are removed just from the USA based (google.com) site, but they are also removed from google.co.uk, google.co.in, etc. Since US Govt. has no jurisdiction over these other countries, I think its improper to apply DMCA blacklisting over there.