This is an air show and not some military base for not allowing media close to fighter jet that too escorted by host country senior officer.Since it is a joint stand, PAF official also have equal right for media access to jet or not.This itself prove that jf 17 program is developed,owned and dictated by whom.
It's a joint stand for a joint product and the Chinese would also oblige if they bring in someone whom Pakistanis refuse to give access to, even if accompanied by senior AVIC official.