I really like Gary Johnson, but I really, really preferred the continuity Ron Paul version of Johnson from 2012 than I do this Johnson 2.0 experiment in moderate Republicanism.
The Libertarian Party has never hesitated to be willing shills for the big-business, socially-liberal Rockefeller wing of the GOP. Johnson is just the latest iteration.
Aside from the Barr/Root ticket and perhaps Ed Clark, I don't think they ever deviated too far away from their principles. Even Johnson in 2012 ran on a genuine libertarian platform.
Bob Barr was such a terrible nominee for them. The guy was one of the most un-libertarian Republicans possible when he was in Congress. And then he ended up returning to the GOP anyway a couple of years later.
Ed Clark adopted a strategy similar to the one Johnson appears to be using by oversimplifying libertarianism into "liberalism with lower taxes."