Not really. Response can’t be more than perceived to be adequate. In this situation India would allow Pakistan to gain mileage a shade less but not more than appropriate to its assessment. How would they do it, is not known.
What is the proportionate is anybody’s guess. It would obviously be different as seen by each side from its own perspective.
Every situation across the world has someone to gain and someone to loose something. Pakistan is the gainer in this case both diplomatically and militarily. Pakistan extracted an apology, raised it on various international fora, demanded joint investigation and was able to project India as an irresponsible nuclear power. Many countries would definitely ask India behind closed doors about this fiasco. Internally, political leaders must have asked some tough questions from the military.
Pakistan got quite a lot of valuable data on the missile profile and various parameters. Missile debris can also provide valuable information. All this came as a gift since it wasn’t a planned launch by India.
This launch was not. Had it been intentional then yes.
Moreover, Isn’t brinkmanship part of the game between two adversaries. Threshold of brinkmanship displayed by the powers on both the sides after this incident was a little sedate compared to what is being proposed by FMs here.
My assessment is in line with what has been displayed by both the sides till now but your’s is more aggressive.
The story is not over yet. There is a possibility of Pakistan doing something to send a message. If that is done then it would be uncalled for. Retaliation is done for an intentional act and not an inadvertent one.