How can they judge a student's educational record without them, besides their transcripts? A student getting "a's in college prep classes would do much better than a student getting "a"s in a level c classes
They are looking at high school transcripts to see a well-rounded student who applied themselves. They are also placing greater emphasis on community involvement and sports much like the National Honor Society (although grades will always be the qualifying factor to submit an application, the successful NHS candidate will have great leadership experience and community work on their resume).
There are quite intelligent students who can ace tests but never apply themselves in any facet of their lives, to include classwork. SATs are going the way of the dinosaur, especially in this age of technological advancement.