absolutely, but I'd rather a candidate flipped to a generally unpopular position that I agree with than away from it to appear more electable. I think that any candidate or any person for that matter is going to change their opinion over the course of their life. They're certainly flips, and they're inconsistencies, and that's not a good thing usually. However, I think it's human nature to respect more if someone flips to a position closer to your beliefs. Obama abandoned a position I greatly respected him holding, Barr has chosen to adopt several I respect after previously supporting several I find odious. As I said, he's NOT my ideal candidate, he's just better than the others.
And, oddly, probably increases the credibility of the Libertarian party marginally because he's slightly higher profile having been a prominent former Republican in the House.