The most probable explanation I can think of is that, after repeated complaints, and after waking up and smelling the s..t, Unkil has told his boys in the field, next time TSPA provides cover fire or launches mortar attacks on behalf of Taliban, give it back to them, we will deal with the consequences. And boy, did the GI Joe take that to heart..! They must have been suffering from itchy fingers for so long.
Most 'friendly fires' are single events - single bomb being dropped, single missile sent off in wrong direction etc., not sustained attack over 2 hrs. So the Paki-barbaric animals are right - it is deliberate. But for the right reasons - they have paid the price for years of double game, a very very very small price, hope there is more to come..
It is also interesting to note Unkil has heaped punishment on the GI Abdul instead of going after the top brass. Firstly any attack on top brass has to be covert, hence robbing much 'credit', secondly by going after Abduls, the pressure on top would be unbearable. That would create more Qadris. Kiyanahin must be sh.t scared to visit any barrack without tight security against his own men
As the military is eventually shown up to be a bunch of eunuchs (because it is the civilian govt that retaliates by not going to Bonn, military cannot do anything by itself), Unkil also weakens military hold on Pakbaric animal society.
Several birds with one stone look like..