I think his words were twisted there - he said - "It is very clear that whoever is fighting for their freedom is fighting a jihad ". That does not mean he endorses the Taliban's world view, far from it, just that he understands the motivation for fighting a foreign invader, and is playing to a complex home crowd. In fact he's been threatened with assassination by the Taliban in the past, has been strongly critical of them and went to visit the girl recently shot by them (he wouldn't go near that if he wanted to support them, they explicitly told him he was not welcome, but he went anyway). Just because he's not willing to condemn everyone fighting the Americans in Afghanistan does not make him a war monger. Here is the full quote, minus the editorialising from the guardian (who want page views after all):
“In the guise of the Taliban, there are several criminal gangs who didn’t even spare PTI workers by demanding extortion money.” The PTI chief said that “drone attacks are carried out with the consent of the government, and in reaction, Taliban attack civilians.” Citing an ex-employee of the US Central Intelligence Agency, he said that unless the Pakistani government withdraws its support as a coalition partner on the ‘war on terror’ it will be unable to overcome the insurgency in the country. “A military operation can be a small part of a larger solution but a conflict cannot be resolved through military operations alone,”.
If you discredit the moderate voices like Khan's you're left with the extremists like the Taliban, or Musharraf - really the west should be trying to work with moderates like him, not intimidate him into silence or funding dictators like Musharraf and the ISI who have channelled funds to these terrorists everyone is so keen to profess hatred for. It's no coincidence that Bin Laden was hiding in plain site in Pakistan, and more terrorism targeting US troops will be funded by Pakistan (and thus indirectly the US) until the US look for a political solution rather than performing drone assassinations, indiscriminately showering the Pakistani military and security services with money and hoping it will all just go away.