DPG obviously is too ignorant to understand that the Mavs entire defensive gameplan was to allow Miami to shoot long jumpers all they want, and keep them out of the paint. Dallas did a damn good job of that, while on the other end, they were able to get a lot of good looks and shots they normally make. When Miami realized they were not having a good shooting night, it allowed them to close down on Dirk more and take more gambles defensively.
While Miami does a solid job of closing out on shooters, I noticed though, they have a definite weakness with their rotations, in that they allow a lot of space for dive cuts. Marion had quite a few, and could have had a lot more. Terry and Chandler both need to look for dive cuts as well. The shooters need to pump and either step in for a closer shot, or look for the dive cutter.