Right now, the Mavs had the biggest collapse in NBA finals history as well as the biggest upset in rd 1 history in terms of the difference of w-l between the two teams should they lose this series. Which obviously isn't a great thing to be remembered for.
I can't see the warriors getting past rd 2 should they advance, I think while they are a good team, this is much more of a case of a horrible matchup for Dallas than a team that isn't what I'd really call "elite" though they are peaking at the right time