True but then air combat was far simpler back then. Today, a sophisticated adversary like Israel can have you chasing shadows while they quickly degrade your ability to see, hear and eventually respond to debilitating attacks. The fight has evolved but Pakistan is yet to recognize a new era has dawned and equip and train accordingly.
Maybe I'm being harsh, perhaps clever people inside PAF are aware but don't have the means to pivot and recalibrate. Perhaps there is no need to since you have a clumsy, incompetent enemy next door - who knows.