Benedictus Deus says those who are pure enough to enter Heaven immediately do so, while those who die in sin go immediately to Hell; it distinguishes between these types and those who require additional purification.
Hence, it might allow for someone who would otherwise require purgatorial fire to instead be sent back to earth. But that would mean the person was already justified, rather than reprobate. If they were reprobate, they would just immediately go to Hell. If they require further purification that means they're justified, just not justified enough. And they would be counted among the blessed no matter how their additional purification was experienced.
Do we wish to argue that anyone who dies justified having not received water baptism is purified by water baptism after death but before entering Heaven? I suppose we could, but that sounds just like "regular" BOD, just with an extra step.