[Brekkie]

My point is, Phil, that Kirsty Wark has been presenting Newsnight for 30 years. When she does leave, someone at the BBC might think 'hey, instead of just replacing her, why don't we take a broader look at Newsnight and see if it's worth keeping? It is expensive, after all'. In normal times this obviously wouldn't happen - Newsnight has continued long after the departures of Paxman, Maitlis, et al - but these are very much not normal times for the BBC. 

Disagree for the reasons you state - indeed despite her ever presence Kirsty Wark is a fairly low key main presenter.