Sad, but also as mentioned in the article, a reflection of the current state of our schools. In many districts "normal" classes are not competetive and challenging enough to properly prepare children. We are lowering our standards across the board, not just with gifted, and eventually we will suffer as a nation. Students who once would come to the US from other countries to study are quickly finding other programs that are taking over in a area once dominated by the US, particularly at a University level.
I'm sure it doesn't take much for the teachers to figure it out once the kids are in the class.