This here is China's Achilles heel, just like it was USSR's. Not having strong and prosperous allies is where the West has always had the edge over rising Eastern powers. The same was true for Germany. Such states rely on their muscle but are ultimately overpowered by allied forces in the hot or cold conflict. China needs a string of strong allies, and Pakistan can become one if Chinese assistance is extended to develop its domestic manufacturing capabilities (in limbo CPEC 2.0). There are other prospects in the far East, but China has to show flexibility there and abandon some of the claims on South China Sea waters in its own larger strategic interest. Otherwise, these states could decisively tilt towards the QUAD-led states, and China could lose potential allies.
As for the post itself, if there is any collusion behind the scenes between the Pakistani and the Chinese state, I cannot understand why both have allowed India to develop strategic infrastructure at breakneck speed and arm itself to the teeth replenishing exhausting war stocks. India has been on a buying spree since Feb 2019 humiliation, whose pace was quickened after the Chinese build-up along the LAC. Similarly, the infrastructure development on the Indian side has also seen a shot in the arm since the LAC becoming mildly hot.
As Asfandyar rightly pointed at that 5-10 years down the lane, India could be extended similar technologies like the ones that have been offered to Australia under AuKus. In these circumstances, it makes no sense to keep waiting and let India put its house in order and fight a much stronger foe.