The rating in the review does not affect the score that's true, but why should it?
Does that mean you should be able to double vote: Both in the review and an ordinary vote?
Should you only be allowed to vote when you leave a review?
Or would there still be an option to vote anonymously?
Personally I like the system as it is. I think voting should always remain anonymously, because anonymous voting is what all fair systems are based on (like democracy).
Some people however like to give and/or receive feedback on the work here. That should be allowed to, because I think it's great if everyone can share their opinion if they want. The stars that come with the reviews are just a nice indication, nothing more.
I think this topic might better fit the zerovoting and exposure thread