Given the way people of other faiths/beliefs are treated in Pakistan (Hindus, Christians, Ahmadis, Shias), I guess some extremist Pakistanis would wonder why killing/driving-out/converting Kasmiri Pandits is such a big deal. After all, that is what happens in their country all the time. If anything, the Kashmiri Pandits got a very good deal - of converting to the one true faith, in the view of these extremists.
Outrage is selective for such persons - only when people of their faith are at the receiving end, and the perpetrator is from another community. Everything else is propaganda. Which is why Gaza is a tragedy, but Yazidis being killed in Iraq is Western propaganda to malign the true faith. There is outrage on the street and massive demonstrations when Burma treats its minorities harshly, but nary a peep when Boko Haram kidnaps/enslaves/converts 300+ schoolgirls. Expecting their kind to have any empathy, we might as well be expecting a rock to bleed.