Earlier quoted context omitted.
From my reading it was about rv the new tool that hopes to replace rubygems and the push to remove the competition. The losing of sponsorships because of the talk is what gave shopify leverage. And they used it.. out of fear over the rv tool.
Chances are, this will make rv into a bigger success. Assuming the rv developers delivers on their promises. (I tried using their first version on launch only to find that the features I wanted have not been written yet). Where are you getting that Shopify fears rv?
The tool looks to replace gems and it's ecosystem.