At best the JF 17 can protect Pakistani airspace and interdict while with in range of PAF electronic support assets - Erieye and Iqbal. If the PAF had the F-35 or equivalent quarterbacking the JF-17, the JF-17 will be able to engage and destroy any enemy air or ground asset deep inside India without the need for support from slow lumbering ESMs such as the Erinye or Dassault Falcon.F-35 hater or not, what Dav is saying implies that Pakistan is right on JF-17 program, it's cost and where it stands on the technology curve. Some people made fun of the JF-17 program for it being a low-end fighter and not being equal to Rafale or Block-72 etc, but what our program has actually achieved is what the USA was hoping to achieve with their F-35 program... i.e. to replace their ageing fleet with a new work-horse that is inducted in larger numbers and is flown "every day to work". Guess what! We have not just met that requirement, but now with satisfaction we are making it a medium to high-end fither in our inventory.
For Pakistan, JF-17 is a tick ✓ and a tick ✓.
Plus with Pakistan's lack of strategic depth and with India's acquisition of long range meteor, ARM and SAM it is unlikely the Erieye and Falcon can go about its business unmolested even in Pakistani airspace.
So to conclude Pakistan is lucky it has an incompetent India next door. If Israel was your neighbor instead of India, the JF 17 would be hopeless ineffective.