what I have understood is
there is no such law that is implemented into regulartion and allows one to move after 180 days. Even there is nothing implemented into regulation, people in desparate situations are exercising AC 21 (again not implemented yet) and moving to different companies. INS is being lenient to those who are using possible "future law"!
Nobody knows why INS does that. Since it is not against "Aliens", we all are welcoming it quietly, no whining. So make your own
decision. If you want to take a vote, I will say go for it.