At One time, in not distinct past, declared officially that they are going to acquire FC-20 (J-10A) and now someone with credibility has revealed that there were some issues with that plane and history proved it correct as PAF didn't went for it while in the same time, our enemy kept acquiring MKIs and upgraded Mirages 2000, to me it does concern PAF. But that thing is apart, I want to have this discussion on more academic level to gauge the mindset of PAF with respect to acquiring new platform. We must not forget, EF-2000 and Rafale were also tested by PAF aroudn the same time period and J-10 happens to be only feasible jet with design similarities (despite being single engine against Twin engine EF-2000 and Rafale) but then PAF informed Chinese about it shortcomings... then we saw two iterations of J-10 (B and C model). To me everything is connected. I still believe that J-10CE can be best stopgap fighter along with Block-IIIs, till the arrival of Azm which is 15-20 years away from operational life ( that too if everything comes out as planned).
If all this is not concerned to PAF, I don't know what will ....