Because they couldn't keep him out,, even in our fake democracy he simply is too popular and had too much people voting for him
Fundamentally
1- Establishment was 50-50 on PTI and thought they would just in reality be a worthless party like PPP or PMLN
2- They didn't help PTI get power, the limited PTI's power by rigging elections, manipulating democracy so PTI couldn't rule or get a majority that mattered, that meant PTI had a shaky coalition, establishment then supported "Controlled" politicians so if PTI stepped out of line they get the rug pulled out from underneath them
3- IMPORTANT
IMRAN KHAN GETS TOO INDEPENDENT, GETS PAKISTAN THROUGH COVID, STARTS MAKING FOREIGN POLICY DECISIONS INDEPENDENTLY.
STARTS TO TALK BACK AND ASSERT HIS AUTHORITY AS PM
Imran Khan is too popular would win elections and get majority, and with them being in government, IK and PTI had the power to keep a eye on rigging
Thus the Establishment, military, PDM parties, waders, sardars, elite all the trash and scum of society
Basically colluded to get IK and PTI out of power and destroyed, before any elections
This is what happened,
There will be no more PTI or IK
PDM/Establishment is now in charge
We don't have a democracy
And nothing will change, because change means a loss of power for them and the elite
They will have fake elections, it's already agreed that billo rani or another lota will be PM and we will have another 5 years of utter beghairati
PPP rule Sindh
PMLN in Punjab
Mullah diesel and ANP in KP
Sardars in Balochistan
As long as they get to keep their little kingdoms, everything will be fine