The press seems to have tasted blood. If I had to guess I'd say they resent being denied the easy and traditional debate spectacle.

From your link

No Prime Minister is better than a bad Prime Minister

Except she doesn't take questions from the public.

She's almost never been exposed to the public during the election, hiding in remote corners of constituencies surrounded by a phalanx of blue meanies and a press cordon told which lenses to use to ensure nobody sees the empty spaces.

keep to the Fen Causeway

She looks like a frightened rabbit terrified of public scrutiny.  Strong and Stable is the very opposite of what comes to mind when you actually see her perform

Index of Frank's Diaries