Sounds like her Ministry staff along with the PMO's office left her twisting in the wind.  Ms. Joly appeared to be unprepared to go against the panel of aggressive guests at the broadcast. They could have sent a spokesperson, or vetted the questions in advance in order to preserve her position and dignity of the office.

I think this is number 4 on the list where a Minister has either been promoted prematurely or asked to deliver on promises that were far more complex than a campaign slogan.

Unfortunately they have all been, so far, female cabinet Ministers.  As a manager, one tries to put people in positions where they can succeed, or have a chance of success even if it presents challenges.  I'm guessing that didn't happen in the PMO, but based their deployment decisions on other criteria.