I will continue to believe that this is another tentacle of William Barr's political harassment of Google and tech in general until he leads the same crusade against other 'monopolies' of the same degree like Comcast, Apple, Boeing, Amazon, United Airlines, etc.
I agree with Comcast, they need to be broken up, and Amazon could do with some scrutiny. But Apple, Boeing and United Airlines? The aren't monopolies by any definition.
Boeing has a serious lack of competition. Their only meaningful competitor is Airbus and that's a foreign company. They have no domestic competition at all, which is inherently problematic, especially for a critical industry like that.
I don't understand why United Airlines is on that list either. Airlines are a weird market because it's extremely capital intensive but also aggressively competitive, so they sort of alternate between all going bankrupt from relentless price competition and all colluding to raise prices enough that they don't all go bankrupt and then getting in trouble over it.