I agree with most of your positives on the game but your negatives seem nitpicky and not bad enough to affect the score. For me, forcing progression by limiting my choices in when I can backtrack by blocking paths or putting powerful high level enemies in a spot I just left was annoying. I think that the skill trees should offer more variety or be deeper. Just seemed shallow for a rpg but excusable considering the other GoW games.
My nitpicks. Kratos' strength in combat doesn't match the level of strength he displays in the action scenes. Kratos is really squishy for a supposed god because everything can kill him fairly easy. The platinum was too easy to get.