What a brilliant idea. Not.
It isn't crystal clear that this means ALL combat jobs like direct offensive ground combat in the 11, 18, and 19 series MOSs, and I thought there was a statutory barrier involved in this as opposed to a purely policy one. The pressure for this is mainly coming from female officers, who feel they are professionally disadvantaged by not being allowed to command infantry, armor, and SF units, there are not a Hell of a lot of women who are dying to get into the line ranks to do this shit. God forbid we hamper some West Point woman's chance of becoming CofS...
The unintended consequence of this is that the next four years will set up a situation where the Administration is even less willing to commit boots on the ground than they were under Clintoon's time in office, because as much bad press as young men dying makes, young women dying or being offed in some colorful and protracted way by Muslims is even worse.