You realise that the Military rating does mostly work? It's a rating of 0 - 3 stars (4 point scale) instead of 0 - 5 (6 point) as for Economy and Diplomacy.
I agree that it's a bit odd that Military has a four-point scale instead of six-point. But the rating is at least partially functional now. It just doesn't have much granularity so you can't tell a huge difference between, say, Spain and France and Ottomans. But you can tell a difference between, say, Denmark (2 star in 1579), Sweden (1 star in 1579), Netherlands (2 star), Brandenburg (1 star), and then Commonwealth, Ottomans, Spain, France, England etc (all 3 star in 1579.)
are you talking about the military score (1st - 10th get monthly points)?
Something about the military score bugs me. Your morale bonus depends upon your current military funding.