Saw and heard interesting takes from Bob Sturm on why the offense seems so aggressive, and thus, more turnovers occur, in the first half of these games. It's by design he thinks. They know their defense needs the lead or they'll get pushed around in the run and screen/quick pass game, so they want the other team scared they can score on every possession (which they literally can).
Even I've thought it was strange that Dak's been throwing tougher passes into more crowded areas...definitely counter to what he's been accused of his entire career of only throwing to open guys and the hashes and short throws. But he's doing what they're game planning to do. Maybe the get out to a big lead early, or at the very least force the other team to try to keep pace with the track meet style they're pushing.
They believe that their defense can force the other team into WAY more mistakes than the Dallas offense will make, and so far they're correct.
Basically, the offense along(not including the D/ST TD's) is averaging about 35 ppg since Dak came back. If you told me the Offense was averaging that much a game while turning the ball over 1-2 times a game, I'm sure we'd ALL take that .
Now it may bite them occasionally, and could in the playoffs...but the odds are stacked against the other team sticking with DAllas being that aggressive early, even with mistakes, and being sound enough to keep running the ball and not get pressured into passing a bunch and feeding right into the DL's hands.