By rewarding the girl in this case will make a mockery of our immigration law and the tens of million that waiting for years to do the right thing.
She just have to move to the back of the line, as other LEGALS have been doing for years.
If we continue to give exceptions, then more and more folks will be like her/her family. They would get a visitor visa for a few months, stay in the US for a few months and then would not go back home. Then cry to the news outlet ==> boom, grant exceptions and get skip all the way to the begining of the line. Not a good idea.