Anyone who is of the view that Prime Minister of Pakistan, Imran Khan and his government are a failure by not imposing the Air-Space Ban on india, are either dumb, or stupid or both.
In order to impose a comprehensive airspace ban on another country, that too which has a direct border with the country imposing a ban. There are many factors that come into play, which have to be mitigated tactfully. Otherwise you may just be a "Jahil, Gawaar" and end up hurting Pakistan's already battered economy.
First things first, Government of Pakistan has to all it's bases in terms of litegatative blowback. Secondly, Government of Pakistan must replace revenue source with other countries and airlines for air-routes through it's territory in order to minimize or eliminate any losses incurred. Thirdly, this ban, when imposed, will not be a temporary measure since the enemy's actions were also of permanent nature.
Look before you leap is not an act of cowardice, rather an act of intellect. Something which is seriously lacking in some Pakistanis on this forum. I mean to say man, come on, some of these "Jiyalay" are worse than a pregnant woman on a hot day! Get a friggin grip on yourselves and stop behaving like a mad cow.