I agree. The list matters to the boys who want to be on it, and that's all that really matters about it. They all follow Ty, they know there is a list every year, and they want to be as high on it as possible. Whether the list is actually 'right' or not isn't the point; being on it is the point. Does anyone else (besides the dads) actually look at it? Who know and who cares. If your son thinks it's important to make the top 10, top 25, top 50 or top 100 for next year and that motivates him to work harder, then it's a good thing. Competitive lacrosse is a pyramid, and like everything else that's competitive, you're either getting better or falling behind. Ty's lists represent that pyramid, and you don't have to agree with the specific rankings to think it has value.
