TBH, this means very little. Trying to simplify it a little:
Only about 8% of the Military is female and only a couple of the career strings are not available to them. All this review is saying is that females cannot fill a Combat Role - ie Infantry, Armour, Artillery (some roles) etc.
This does not mean that women do not go 'front line'. It means that they do not go front line in a solely combat role. Their 'front line' is to deploy to the same areas as the men, but in their employed role - ie Medic, Clerk, Supplier, Driver, Chef, EOD, ATO etc etc.
There are many women in Afghanistan right now - They are not going on foot patrols - but they are their in their main job, supporting those who are going on the foot patrols. These women are trained in the same way as the men, all can return fire and protect themselves and their colleagues if needed.
They are not going in blind or unprotected - they are soldiers first, tradespeople second and female third.