Thanks for the input, Shogun. After playing around with it a little more, it does seem like an online or user vs. user feature. Although, it can be useful against the CPU if you encounter the QB consistently having 5 plus seconds in the pocket and rolling out to the right. "Pass" negates that.
I have found that I can get sacks using "pass" it if I go to press man, but I don't want to run that well dry because press does have it's drawbacks.
And I still can't tell if my line rushes any more aggressively with pass vs. just using a regular alignment.
"A man can only be beaten in two ways: if he gives up, or if he dies."