2. Greyball is a multi-million dollar suit, it will likely be settled for less. Because Uber was only foolish enough to abuse it in a couple of cities 

For starters: It cost them their license in London. Transport for London didn't look kindly at those shenaginas and apparently didn't believe Uber that they didn't employ those dirty tricks in London.

What's the source for Uber only abusing it in a couple cities? Uber?

The problem with that is that Uber is one of the utterly least trustworthy companies in existence. I, for one, assume that the lie by default, whenever they make a statement.