Well honestly speaking , from a marketing point of view it was necessary to develop the format in such a way .There is just a simple reason behind it and i.e. Pakistani and Indian teams . Had they reached the super 8's then the viewership and interest and bla bla would have been better . Longer versions of the tournaments are made to prolong the chances of having the money maker teams for a longer period of time . I think that any sane marketing oriented person over here will definately agree with me . But anyways !!!