Maybe look at some of the trial exhibits that have been posted on the DOJ website. Google sure as hell thinks defaults matter a lot. And intent matters at trial.
From the trial itself, Google has argued and questioned the expert witness from DOJ if defaults really matter. Whole Microsoft question was raised by them too. Exhibits are good with context, but without supplementing the context they are misleading. Hard to argue for something DOJ did not think would make their case stronger and did not refer to in the trial.