IIRC, the May 9 attack happened while Imran was still free and loudmouthing about 'the Establishment'.
As to the rest of your post, including the bolded parts: You don't see how you are incriminating PTI itself. You must have know the inflammatory speeches by Imran and that Imran was advised to not launch the May 9 'protests' by saner members of PTI.
But then, of course, nothing ever Imran did was wrong: The nation's economy was smoothly progressing at 6%, Imran had shot down the Abhinandan fighter jet, foreign relations were good, Imran was forming a Muslim NATO with Malaysia.
All was hunky dory but Imran's fault was 'Absolutely Not' to America and for challenging 'the Establishment'. Right. That's all. <sarcasm>
Well, random people went out to protest that day, people with no connection with PTI but people who got disgusted by the fact that army grabbed a national leader from court (the cases themselves were nothing but joke anyways). Imran had no means to order protests. BTW, when courts / judges are pressured by ISI. Judge's relatives tortured, them being video taped, when media can't say a word then you got only one option that's protests. Its only way to seek justice in a system. But anways, the real culprits of 9th may were the ones who triggered the nation first and then shot down 30+ patriots of the country who were doing nothing but standing up to the state fascism. They are nation's true heros the martyrs of 9th May! They knew IK's wordings that army is also our own, so no one took up arms, no bullet was fired from protestors, no soldier was killed but Generals murdered 30+ citizens of my country.
Anyways, lets believe for a moment that IK was evil and was doing all bad things was a "yahudi agent" and a "playboy" and "taliban khan". So even then you guys had to replace him with a better regime and not with the WORST ever. You guys orchestrated a regime change, stole national mandate, and brought up a dictator for life who intends to lead armed forces for eternity. Well done, you got rid from IK and stuck with a REAL dictator. Now your Noonie leaders are not more worth then a dog of military general. Democracy destroyed, justice system wrecked, Govt comprises of losers in elections, no real representation of nation, no accountability system, no media freedom, no freedom of speech, constitution trampled, human rights bulldozed, army & airforce once again after decades bringing the culture of zero merit but Chaaploosi, as you can't even imagine to become COAS / CAS even if you are competent as those positions already occupied for life (thanks to puppet govt).
So yeah well done! just to remove a national leader where you brought down the country to.
Whatever policy IK was making, or however economy was progressing, or wherever the dollar and petrol was in his tenure let it be as it was his mandate for 5 years. People could have done accountability after 5 years via elections. But nope some treacherous, criminal minded people had to grab power one way or the other. In this game of power, the ones in power right now did every brutality not for Pakistan but their own lust of power. If you think they care for Pakistan or its progress then you are mistaken. All they care if their own power, their own property & business portfolio in and out of the country.