The Azerbaijani deal benefits three countries: Pakistan, Azerbaijan, and Turkey.
Pakistan will benefit from funding the development of the JF-17 and support the Pakistani economy.
Also, in the event of renewed conflict with India, Pakistan could exploit some of these aircraft for its war with India. The Pakistanis may benefit from purchasing the J-35 by using its engine in upgraded versions of the JF-17, providing performance similar to that of the J-10C in the PFX version under development.
In other words, purchasing Azerbaijan, in light of an undeclared tripartite alliance between the three countries, constitutes full support for the three countries.
Especially since there are rumors that the Indians are preparing for a new round of war with Pakistan in less than three months, we see Pakistan announcing that it will acquire a variety of new Chinese weapons as a deterrent message to India to halt its plans for a new war with Pakistan.
Azerbaijan will quickly acquire the aircraft. Pakistan's size will certainly include a large arms package, Pakistani cruise missiles, and possibly other unannounced weapons. Pakistan has also previously supported Azerbaijan with two JF-17 aircraft. Azerbaijan will also benefit from the JF-17 development program, a mid-term program, as funding is available to Pakistan to develop this aircraft, especially since the project has begun to generate profits with a real customer in good numbers, allowing Pakistan to spend on development without straining the Pakistani budget.
The Turks, in the event of any conflict, may use Azerbaijani aircraft and PL-15 missiles.
Turkey remains unable to obtain fighter jets quickly, and the Turkish F-4s have been destroyed. In the event of any war, it will be unable to provide anything.
The Turks, at the same time, will quickly obtain the GE F-404 engines, so the entry of the Hurjet aircraft will take years.
Likewise, there is no confirmation that the KAAN aircraft will enter service before 2030.
It may enter service in 2035.
The entry of 40 F-16V aircraft will take three years.
Therefore, a squadron of Azerbaijani aircraft serving Turkey in the event of a conflict with Greece, for example, would be important. For Turkey, it's a deal that benefits three countries. The Turks may deny it out of respect for their dignity, but in reality, this option is very important to them because they have no real alternative. This could be confirmed if Azerbaijan decides to purchase a number of J-10C or J-35AE aircraft. The Turkish Air Force's unannounced support with JF-17 aircraft will be even more certain. At that time, supporting Turkey with JF-17 aircraft will not affect Azerbaijan's combat capabilities. At the same time, the deterrent and performance capabilities of fighters like the J-10C/J-35A will be able to outperform the Armenian SU-30 aircraft.