It's only one game, what's the big deal. Remember Memet Okur use to light up Yao Ming? It's just bad matchup, nothing to see here.
It's still glaring that Dwight was absolutely shut down by Barg, though. And 5 shots is not acceptable for the best 5 in the league, regardless if defense is his strong suit. Real big men don't have to score and play 1-on-1 D, now? Why can't the best 5 in the game perform those 2, in addition to grabbing rebounds and providing paint D?