Although I’m one to point fingers at the army (establishment) interference more than most here. I think people are losing sight of how they operate politically and how they exert influence.
Let me paint the actual picture as it stands, IK was in their good books, he was their choice since 2013-14. If there’s talk, there’s mostly talk about establishment withdrawing support, not actively undermining him. The reason why people then jump to this minus idea is that they are (IMO wrongly) assuming that if the establishment backs off IK will fall immediately. Yes for sure PMLQ and MQM will desert him, but there’s no guarantee that the opposition will be strong enough to overthrow a minority government, in that scenario anything can happen. IK would still have power but his days numbered.
However, if the army wants IK gone, via in house change, elections, undermining etc. They can do it very easily, it’ll cost them though. In house change is easy as surrounding IK are opportunists within and external vultures without. But make no mistake, establishment aren’t stupid, they don’t blatantly rig elections or use force unless they have to, they prefer politicking and election engineering behind the scenes. For example if they need a certain undesirable party to get fewer seats in Punjab in the next election? Easy... no need to rig, just let another party emerge that will break barelvi vote of that party you want to undermine. You need the stage set politically so awaam can accept a questionable political outcome? Easy, employ your goons in the media, you can even arm twist the judges, courts might fight you but if you have dirt on a judge to blackmail with, who needs institutional complicity? Etc.