What benefit Pakistan got from this wonderful geo-strategic location up to date other than death and destruction? It seems all of Pakistan's geo-strategic location only serve the purpose of super power adventure in Afghanistan.This was the case both during 1980s and 2000s.You should wonder,whether Afghanistan is more geo-strategically important than you?
Afrer disolution of USSR, Pakistan's importance to America greatly reduced.They no longer need Pakistani secret airbase for spying the southern flank of USSR.
I doubt Gwadar can be a game changer for Pakistan in a long run.Chinese are not that stupid to import middle eastern oil by driving 7000 km road distance through volatile region to supply to their economic and population hub in eastern China.China can at best use this port to meet few percentage of their oil need in western China.But it is tremendous benefit of Chinese company to get all those construction work related to CPEC.
After the twilight of middle eastern oil reserves, this port will loss much of it's function anyways.