The country broke in two because of ZAB, not Yahya. The latter became the fall guy solely because he could not get Bhutto to accede to what was right, which was, let Mujeeb rule. So lets be very clear about putting the blame where it squarely sits. You must know the famous adage, "history is written by the victors", so in this case, Bhutto was the victor and Yahya lost out and Bhutto wrote the history which made him look better.
The Balochistan problem is not due to the Pakistan Army. What stopped ZAB, NS, Benazir from fixing it permanently? The action against Bugti did not happen in a vacuum. There was already agitation from way beyond at the behest of various nawabs.
Lastly, prove Musharraf's crime first before calling him a criminal. Last I checked, even in our legal system, one's guilt had to be ascertained before considering them a criminal.
Agreed on the paper being a "Discipline/framework", however the litmus test is whether this very same Supreme Court goes back to that issue of 1999, or just tries to pick things which keep it from self-probing its own role and guilt in military takeovers.