F1 visa is non-immigrant; you are supposed to go back to your country after you're done with your studies or if you drop out. So the author was never promised a

F1 visa is non-immigrant; you are supposed to go back to your country after you're done with your studies or if you drop out. So the author was never promised a path to immigration, in fact, he actually promised to leave the US unless granted a change of status (which is a privilege and cannot be automatically expected, of course)