Disclaimer - I'm not from that area, but I was talking with a buddy of mine from Larkana about this and the region of Sindh and Punjab that was badly affected is basically a badland with bad governance [0][1][2][3][4]. Also fits in line with the Saraiki folk songs I've listened to. On the northern and central Punjab side I'm not surprised that it was not badly effected thanks to the Canal colonies that the British built out there [5]. My mom's side of the family is from the Jhelum Colony originally before Partition
[0] - https://en.wikipedia.org/wiki/Shikarpur_Operation_2021
[1] - https://en.wikipedia.org/wiki/Nazroo_Narejo
[2] - https://tribune.com.pk/story/2370767/dacoits-kidnap-torture-...
[3] - https://www.dawn.com/news/1625938
[4] - https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.47...