Ask HN: DMCA complaint blocks Google result for education.github.com

I'm not sure how this is a legitimate take down request.

When I search Google for "education github", the main page (education.github.com/) does not show. The first result is the /contact page. At the bottom of the search results, there is a link to chillingeffects.org.

From what I can understand, the page was blocked because it "facilitated piracy", not because of a copyright violation on that page.

Is this a legitimate use of DMCA? Did Google do what is was supposed to? Would Github have been notified??? What keeps somebody from blocking other important pages?

http://www.chillingeffects.org/notice.cgi?sID=1599322

This doesn't seem right. Does anybody have any insight?