Well as a Pakistani, the responsibility for security lies 100% on the Pakistani government. A failure to provide means china pulling out investment is justified even though Pakistan acts as a shortcut for Chinese oil imports from the middle east in it's BRI project.Pakistan doesn't possess the resources for such programs.
Khan seemed to have been different from the regular stock but I don't know how effective his policies were. I haven't followed the politics in detail in more than a decade, but atleast in words, he appeared to have been critical of the West and of the Army's interference in politics. I have heard he was more talk and less action, not because of ill-intent but because he simply did not know how to execute (i.e. incompetent). I don't know how he handled the tribals although he was very popular among them; if I'm not mistaken, his rise or his initial voting base came from those tribal regions.
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Btw, I have a random question about the Chineses languages: how do younger folk address older individuals? Do you say him/her or them? I think I've read older folk are never called by their actual names which is also prevalent in middleastern and central asian languages. An elderly person when he/she speaks, do they say we or I to identity themselves?
BLA is a terrorist organization founded by India. That much is true, however Pakistan has more than enough capability if it can honey trap indian scientists and constantly outmanoeuvr India.
But in reality. Pakistani leaders are more concerned over persecuting Khan than their actual job.