Don't confuse meeting with Congressmen with the government as a whole or even a form of regulation. Google used to meet with other administrations all the time. The meeting stems a lot more from their dodging the Senate Committee hearings that Twitter and Facebook both showed up to, and their bending to the Chinese government than anything else, rtfa.

To reiterate, there's a reason this article is about Google and not Facebook and Twitter...because those two showed up to the Senate hearing...which was bipartisan.