I am confused by this thread, you are making it sound like you purchased Baluchistan from Iran yesterday. Baluchistan is one of Pakistan's state and there should never be a doubt about its importance. You can't cut a leg or arm and function normally as a body, i.e. The Pakistan. So the thread's main topic is silly.
In fact, Baluchistan is going to be "the" state / province which will have the biggest contribution in taking Pakistan forward towards more modernization, the Gawader port, the trade route, etc, etc, ALL go through Baluchistan. So it's naive to question the importance of Baluchistan. There is a reason why Indian, Afghan and Iranian agencies are doing terrorism and violence in Baluchistan, because they don't want Baluchistan to grow and in turn, help grow Pakistan. The Gawader port by itself will make this any Iranian ports with similar feasibility, useless, and will bring in billions of dollars every year into the Pakistani system.