There were 2 possible routes WWE could go with this match:
1. If WWE planned on teasing a DX-split, then you could have HBK accidentally kick Triple H leading to a Hart Dynasty win.
2. Since DX isn't splitting, they needed to show that they are still a cohesive unit, by working together and winning. And if they work together, that gets to the REASON they won. Kayfabe. Nobody on gods green earth should believe that The Hart Dynasty (a lower card Tag Team) could beat DX (a Tag Team of 2 Hall-Of-Famer's) clean, if DX was working together.
The Hart Dynasty should get a push, but not at DX's expense, especially since they didn't tease a split. Let The Hart Dynasty beat some mid-card people for a while (maybe even win the Tag Belts), before they compete with 2 Hall-Of-Famer's.