While I'm all for increased scrutiny of tech companies that have such a large presence in the public sphere, the current administration has been off-and-on pretty hostile towards Google for reasons rather unrelated to antitrust. Given the DoJ's actions in the AT&T/Time Warner merger, it wouldn't be a stretch to suspect a politically motivated ploy here.

Do the ends justify the means? Maybe. Is this causing an unfortunate precedent to be set? Maybe, too.