They are not separate in the monopoly sense though, are they ? Chrome, presumably a cost center, exists only to facilitate google's other businesses. Nobody has punished google for keeping products separate. Quite the contrary. It has always been about extending dominance in one segment to an unrelated one. So google could say that they treat all trackers equally in the incognito mode, and that would be correct, but if google analytics is the revenue center, and the cost center is giving it a free pass, the argument that other trackers can also bypass incognito seems weak.