Also, it might have skipped through the minds of many here but, less is seen in regard to advance and modern weapon procurement like F-16 or J-10.
Taking over the command of balancing geostrategic equation and replacing a power with more influence having control to hold the region together and with equal military power balance.
Does anyone try to understand that? US always vouch and sold weapons only as per needed power balance and keeping the influence over certain parties in the region while controlling the escalation tech. We have seen it before and that too, it was kept balanced by Pakistan. Whether USSR in Afghanistan or post Afghan war, Pakistan emerges as the regional king maker.
A fact and bit of harsh reality which is more of a truth to say that US will have hard time to forget instead of people saying that PAF is obsessed and F-16 boys wouldn't let it go. Ultimately, Pakistan is the one balancing regional conventional power by keeping ahead of only warmongering PM in East. Eventually and not to surprise, China has taken over the role of balancing the regional theater by way of weapon sale and so the economic practice. The geostrategic balance command is shifted to China and who's the key here.... Pakistan.
This fact alone hitting hard or might be hard for Viper producing and blocking Country.
China is now replacing US in this regard and the show has just begun. It's not just about J-10C but that command to control and balance regional strategic games. The most sensitive and advance tech, aka J-10 is nothing less than those Vipers in 80s for PAF. Game changing and so the geostrategic referee. For US, holding back onto something such as Viper and some other stuff believing into submission by Pakistan, was the least wrong move and apparently lost it.
What's next then? Drums of unrest and chaotic situation so that Pakistan, China and Russia be affected. Pakistan could be the first Target since only Muslim nuclear power and with unsustainable economy till now.
Game rules changing and so the game itself.