You are thinking too defensively,
World has changed much after 9/11 and mohemmdan chimpout terror attacks are taken seriously now across world and Isis caliphate of 2015s tarnished these terror groups even further. Look even pakees are renaming their terror groups from mohemmdan branding like lashkar e tayyaba to resistance front

as some liberal hippe group. They can't even say what they are fighting for now.
So, diplomatically it was mostly perfect. No one condemned us for bombing pak especially from west, and everyone condemned the terror attack even mohemmdan countries.
And coming to iran, they have a neutralish relations with pak after revolution in iran, before that under shah iran and pak are bffs, with iran even allowing pak to use own land to store jets in 1971 and giving gunships to bomb balochis etc.
Khameini the azeri turk in iran generally whines about kashmir frequently but their gov mostly stays mum. khoneini does it for a reason because iran has some cultural influence in these regions. syed ali gilani as name suggests is literally from Gilan in iran but long back. There are many such cases even recent like khomeini(revolution guy) is one such irani immigrant in india from his grandfather side iirc. iranis even bombed israeli embassy sometime back using local shias probably and had to be warned to not repeat. so iran is not that innocent as you think and pak will never be without allies when situation is dire because of mohemmdan solidarity as shown after 1971 loss for pakees. We have to do it inspite of all these.
See this post for amount gibs pakees got and continue to get inform of zakat etc.
He thinks gulf is on our side when saudis literally funded vt4 and even did down payment for j-10cs while qatar is giving rafales to paf for training
They want for us money, we want them for energy needs that is it