I think MastanKhan explains it as it is. De development cycle is 6-10years ahead of what is actually published.
Like I said, there is every likelihood that the Pakistanis put in a lot of R&D for JF17; but THIS very paper is not that example. Because the paper itself says so in the Introduction. Plus the references used in the paper are self explanatory. I dont understand whats the fuss in not accepting this fact.