I understand your skepticism because the SNC-Lavalin scandal was also historically bad.
The thing about SNC-Lavalin though, was that they were entirely able to keep the focus off what had actually happened. Particularly the entire "pimping Canadian women to the son of a foreign dictator angle" which was the truly outrageous part and something that even the most right-wing press in the country gave no attention because they were so captivated by the idea that Trudeau had fired the first Indigenous woman Minister of Justice due to her inexplicably having a conscience, for the first time in her life.
The simple truth of the Podesta/Butts model is that by promoting people to a postion that is beyond their ability, you create someone who is loyal to you and you alone.
Hadju, McKenna, Freeland, Bains, Bibeau, Joly, Qualtrough, Gould, Ng, Tassi, Guilbeault, O'Regan and Monsef (especially Monsef) are great examples of this ideology. None of them are qualified for their positions, every single one of them owes their entire career to Trudeau and their star rises and falls with his. You don't need leverage against such people, they follow and stay in line out of an acute sense of their own incompetence.
Lucki knows that she's in her position because Justin Trudeau wanted a woman to root out causes of gender equality and systemic racism in the RCMP, that makes her loyal but there's a point when she has to realize that if she doesn't investigate such an outrage as the WE scandal then her career goes down along with Trudeau's.
Incompetents held by strength are only held by strength and Trudeau isn't looking too strong these days.
I say it happens.