The surprising factor is that Muslim majority MiddleEastern countries have soo much hatred for Pakistan . Them hating Pakistanis is not news as Arabs/MiddleEasterners think of Pakistanis/Indians as untermenschen but that is more a personal thing while this is a poll asking their opinions about the nation of Pakistan.
A little surprised Japan and Korea also hates them at such % , because although Pakistan aiding North Korea with the later's nuclear program is a huge deal for South Korea and Japan, I wouldn't have thought the general public in those countries really took it to heart at the levels the poll indicate.
Why is other Muslim countries hating them surprising? Many things that people hear giving them a negative view of Islam comes from Pakistan. Its just a really nasty country, even by 3rd world standards. Their whole culture is shit, its a stain on the asshole of the planet.