There's a pretty good case for breaking up Google, but this article doesn't make it. The word "monopoly" doesn't appear once in the whole article, which is pretty weird in an article about how to break up Google and the justifications for doing so. It lists six reasons, and not one of them is about how anybody would be better off if Google were broken up, nor are there any about the legal burdens that must be satisfied to do so.
Instead, we get reasons like "YouTube has become the visual voice of several generations and is too important to leave hidden inside an opaque conglomerate." That's not even an argument. "The world needs Google Cloud to be viable?" That's an argument AGAINST breaking up Google.