The first part of this article just seems like a good argument to home school your kids. I'd imagine a home schooled kid with a nice SAT score would probably do quite well dealing with college and then just fine after college. I've never been asked for my GPA and probably wouldn't continue talking to a company that asked for it.
That being said part of the point of starting your company is to not worry about stuff like that.
That being said part of the point of starting your company is to not worry about stuff like that.