Because there is a broadly available patch. See eg <a href="https:&#x2F;&#x2F;googleonlinesecurity.blogspot.com&#x2F;2015&#x2F;02&#x2F;feedback-and-data-driven-updates-to.html" rel="nofollow">https:&#x2F;&#x2F;googleonlinesecurity.blogspot.com&#x2F;2015&#x2F;02&#x2F;feedback-a...</a>