Because this is likely being pushed by the Americans. These “Generals” blindly follow the orders given to them by outsiders. They can’t think for themselves or understand that by following these orders, they are planting the seeds of destruction of their country and institution. America doesn’t fight strong countries. It degrades them through civil wars, and when military is degraded to a large extend, that’s when Bahadur US enters and makes ton of cheesy patriotic movies.
Please there is no evidence America has run the show in Pakistan. American diplomats try to get their way but with little success