Suns shot something like 60% in game 1 and 65% in game 2 on very few 3pt attempts. Mavs were able to adjust their defense in games 3-7 and it was a very different series thereafter.

Not saying the Mavs will be able to adjust vs the Warriors, but games 1-2 were similar vs the Suns in terms of the Mavs D being broken down repeatedly and lots of layups.