1. PAF never officially revealed Vera , TPS77MRR or the YLC18A systems neither did they give a hint of these systems , all of which are operational , ab jis radar ka wo hint dey rahey hain wo reliable nahi hai wa bhai wa.
2. JY27A at mianwali purely came for testing and left the base later that year.
3. Yes the HQ9B claim is based on internal sources as the PAF video shows a PLA S300/S400 Launcher.
4. All UAVs shown in video are already operational , WL2 was spotted in sat imagery , TB2 was filmed flying in a video and Akinci is known to be here according to Turkish sources.
5. Now while YLC8E and HQ9B are necessarily not here yet , does not mean they will not be inducted in extremely near future, PAF only showed those systems which it has ordered.
6. This video is as official as it gets , what do you want a letter from PAF delivered to your home saying we are buying this certain system .