From my experience with patching BLC99 and EA07 ,the shots each had an individual file. Contained in these were values for things such as shot power, direction and edge probability. If DBC is set up in a similar manner it should be a case of increasing the edges for the double trigger shots for instance. But even with this done, these shot should be decreased in frequency and non trigger shots increased especially for the longer formats.
The same applied to pitches where there were values for bounce, seam movement and pace among others if I recall correctly.
As you say the fundamentals are wrong in a lot of ways and hopefully getting Matt on board will address these issues in the future.
I disagree with what you say about hard pitches though because as I have said I play exclusively on hard pitches and have no problems getting bowleds and LBWs. You just got to learn to hit that 4m length. As far as seaming pitches are concerned it seems to change from game to game, I've had green pitches that have seamed plenty and I've even noticed movement when bowling on dry pitches. But then I've had green pitches where the ball has done nothing at all.