It's not just quality, but rather funding as well.
Raising squadron numbers is possible and might be related to Pakistan emerging as security provider and guaranteer for GCC/Iran region. The world has already seen the devastating effects it can cause on global economy.
My take on this is, in future we can expect Pakistan getting funding from GCC nations (barring the haramkhor emiratis) to setup, maintain and sustain offensive/defensive force.
Assets would be rotated in and out of Pakistan with China playing a large part in supplying the required weapons/packages.
If Pakistan gets the J-35s, it will have the sharpest spear out of anyone in south asia or GCC. That will be a big game changer as the nukes were.
This will help GCC wean off US security guarantees, and allow China to finally make inroads into the GCC region. (Chinese have already established and penetrated the west/japanese/korean dominated industrial sector so political/military seems next)