It is ironic that my brothers are celebrating, and even fantasizing and creating myths, about something which has NOT been disclosed by either side. All that we know factually is that a Mig-21 was destroyed but we have absolutely no evidence that it was shot down by a JF-17 or an F-16 or even a SAM etc.
Some valid points raised by you. But with the same token many others have raised some valid points. As you admitted there is no official confirmations, therefore, other's narratives may be as good as yours.
Personally, without claiming any insight from PAF, I only analaysed the information in public domain. Forget about PAF, lets say we analyse the information laid down by IAF regarding 27th Feb attacks.
1- 24 Pakistani jets, including JF17, Mirages and F16s.
2- India only sent 8 interceptors. This figure is odd, why only 8!! There were 4 Su30s, 2 Mirages and 2 Bison.
3- One Bison downed, one crashed, presumably. Therefore, both Bison dusted.
4- India want's to award a Su30 pilot for successfully dogging Aim-120. It means that F16 fired Aim-120s. A figure of 4 missiles is mentioned. Were any of them successful!!
5- What did Mirage 2000 did when they were sent to intercept!! What was their fate!!
6- What role did Pak's Mirages and JF17 played on 27th!! Indians admitted that surroundings of their installations were hit. We know the bombing run were conducted by Mirages, and perhaps by JF 17 too.
JF 17 were on escort duties for Mirages. The logical conclusion is that the interceptors would have engaged them first. What happened with their engagements with JF 17!! Indians are not telling us a lot more.
Indians have adopted this policy since 27th that they want to highlight the role played by F16. To pressurise Pakistani through USA. These tactics have failed, but nonetheless it was tried by the Indians.
They would not utter the name of JF17 despite it was part of the leading pack with Mirages. Why!!
I can tell you why. They don't want to admit that Pakistani made fighters gave hard time to their best. Whenever they speak about JF17 they say it is a Chinese fighter, knowing fully well it is a joint fighter. They are purposefully misleading their audiences that Pakistan is inferior to them, despite getting a bloody nose.
These gaps in Indian narratives shows that a lot more happened, which Indians are not talking about. We coupled that with the remarks of Modi and sacking of Western Command Chief. Something extraordinary happened, lets there be no mistakes about it.
A very brief summation from my side:
Poster litman has answered your BS in his post earlier. Shooting down of F16 which you and Indian media is boosting on the basis of Engine casting of Mig 21 had been exposed by an innocent looking expert on Indian channel. Probably nobody briefed him on the plan.
I have already analysed the events in response to maverick post above, from the information released by the Indian media etc. You cannot claim of potential bias from Pakistani sources.
A lot more serious answers have to be provided by the Indians to their own public. Hiding behind rhetoric and lies is not going to work my friend.