Establishment types LOVE Gary Johnson because Gary Johnson doesn't even recognize what the establishment is or how it operates through fiat money and debasing the value of peoples labor. He's cool with the scams, and hasn't been pointing out any of the real problems we face.
Gary Johnson is the establishment dream candidate to head any opposition party. He's even better than Romney in some ways. Both of them leave conservatives and knowledgeable people with no representation in their government, but with Gary, they can let people think they're "fighting the power".