This, along with Google's plans to integrate an ad blocker into Chrome (mentioned at the end of the article), add up to Chrome's team seriously looking to clean up its act.
FTA: "We’re already used to Google’s search engine pushing Chrome, Yahoo linking to Firefox, and Bing recommending Edge. This year, Microsoft has upped the ante in the browser war with Windows 10."
One could make the argument that making the push from the OS is a different level than from the website.
That depends. Some vulnerabilities aren't easy or worth the hassle to exploit. If this one is being exploited by someone already, you're letting attackers know that it's worth the effort, and handing them the manual as well.