I did a double-take when I read that as well. I went and checked the license under rubygems, and sure enough, it's standard MIT with no warranties.
https://github.com/rubygems/rubygems/blob/master/LICENSE.txt
https://github.com/rubygems/rubygems/blob/master/LICENSE.txt
THE SERVICE IS PROVIDED STRICTLY ON AN “AS IS” AND “AS AVAILABLE” BASIS, AND PROVIDER MAKES NO WARRANTY THAT THE SERVICE IS COMPLETE, SUITABLE FOR YOUR PURPOSE, RELIABLE, USEFUL, OR ACCURATE.
What warranty are they providing exactly?
a. THE SERVICE IS PROVIDED STRICTLY ON AN “AS IS” AND “AS AVAILABLE” BASIS, AND PROVIDER MAKES NO WARRANTY THAT THE SERVICE IS COMPLETE, SUITABLE FOR YOUR PURPOSE, RELIABLE, USEFUL, OR ACCURATE.
Just stop trying to make excuses for these people. They screwed up, and based on this press release, don't seem to have any interest in actually correcting those mistakes.