They brought them back on defense when OS was driving on their 30 and had a kid go down.
Just didn't see the benefit of it. Had kids hurt and with the way the officials were tightening the game up I'd be terrified that there'd be a flag and someone would get tossed.
Rumor is that a questionnaire was sent out to coaches and ADs asking about changes to softball, including a question that referenced if they wanted to switch to the format baseball uses in the postseason. This should go over well...