Microsoft is a trillion dollar company with experience working on Chromium and browsers. They have the talent and resources to run/take over chrome.

If Google makes a misstep, it wouldn't take too much effort for Microsoft to run a hostile fork and capture a massive user base. They already are the 2nd most popular browser.

As it is, they have nullified Google's anti-competitive nonsense of using the browser as a way to manipulate markets.

Granted as a Firefox user, I conceded your point to how to affects open standards. Frankly though, that has already been long tarnished by Google anyway.