Except it is Pervaz Khattak that is threat to CPEC. It was same Pervaz Khattak that maintained anti-development of Pakistan for so long, and to the extent, voiced against the Khala Baag dam consistently.
PMLN is anything but internal threat to the development of Pakistan. If anything, it is Pervaz Khattak that is personally hired by Imran Khan. One might wonder given PTI constant pro-TTP stances, housing every anti-Pakistani elements together for Islamabad lockdown, then hiring Pervaz Khattak, biggest anti-Pakistan development in the history of Pakistan, for PTI paint, quite frankly, very gloomy picture.
As i said earlier, PMLN is anything but internal threat to the development of Pakistan. If PMLN had been allowed to succeed with Khala baag dam with no anti-elements to vote down the development and military takeover-free, today Pakistan will be different story.