Breaking up monopolies is a good thing, and Google arguably holds too much power. Chromium is being used in 70% of browsers, and the decision how to implement and develop web standards are all in the hand of one for profit company, which had little interest in keeping things open and accessible (and private).
A quote from this Register article sums it up nicely:
What we are forced to assume in turn is that Chrome is built by the professional developers working for an ad agency with the primary goal of building a web browser that serves the needs of other professional developers working for the ad agency’s prospective clients.
Did you read the article?