As siblings mentioned they do, I think part of the impression is a bit of a selection bias. Because Google puts itself into so many domains they have many many

As siblings mentioned they do, I think part of the impression is a bit of a selection bias. Because Google puts itself into so many domains they have many many possible competitors. PZ tries to look at everything so they're bound to also look at google's competitors and find things. So even if they report on both themselves and on competitors, the numbers immediately look like they're reporting more on competitors because the number of companies involved is larger.