Unordered list of virtues vs what's on the list of intrinsic goods?

On 44-45, Hurka states that an advantage of the recursive definition is that it avoids an unordered list of good traits as virtues. Instead, one explanation is given for why virtues are virtues: namely, that they involve appropriate attitudes to intrinsic or other values. But I wonder how much of a merit this really is. While it does sound appealing to have an account that shows why virtues are connected, I think it shifts the problem such that we need an explanation of the connections between what has intrinsic value. It is not clear how the items having intrinsic value are connected unless we are a hedonist utilitarian. Even Hurka wants to put things on the list of intrinsic goods such as knowledge and achievement, so it is not obvious why certain things have intrinsic value for Hurka like it would be for the hedonist utilitarian. So I think Hurka needs a very good explanation for why these things are intrinsic goods in order to make the avoidance of an unordered list of virtues a genuine advantage and not just an instance of shifting a problem to another location.