Idk man, let suppose if this is the case, you don’t need a high tech SAM to take down 1960s plane. Now if US isn’t ready to escalate conflict after receiving Iranian IRBM than I doubt it will do thing for Ghani govt, specially after leaving a full set airbase their.Dont worry about these guys, it's their little corner of the world they come to escape reality and have their little circle jerks about how important they are.
Since when is a 1950s heavy long range B52 a stealth bomber?
We are in a whole new century brother, in case you missed it.
The reality is Diego Garcia or Qatar, it probably flew through Pakistan airspace, with or without pakistans permission doesnt really matter. Does anyone really think needs permission, or for that fact of the matter, what is pakistan gonna or can do about it?