I get 4 for Revenue Optimisation because I'm not using the ad size they want. They want me to use the 300x250 one but that pays less in this account than the 336x280 one (I have both).
I get 5 for site health.
I get 1 for Goggle+ cos it's not on the site (true).
My view is that the scorecard is aimed squarely at encouraging use of G+, plain and simple, The other two scores are just a mask for the real purpose.