I thought Nerness was always a 2 star. You also can't just take the offers list as gospel. Some of these kids commit early and then don't report anymore offers bc they aren't going anywhere else. On the flip side just because a kid has offers from a couple major conference offers doesn't mean he is going to be rated a certain way.
Building on this... Different web sites (Rivals, Scout, 247, ESPN, etc.) use different grading metrics too. Evaluators prefer some skills more than others and it varies from site to site.