The Leap Manifesto basically alienated all the working union members of the party. They tried to make a shift to urban champagne socialists and white collar unions and it turn out three not a whole lot of support or grassroots funding pushes to be had. Also telling that the party’s desired shift to that demographic still left them effectively shut out of most cities.
The sooner they can distance themselves from people like Klein to draft major policy decisions the better. Not much more alienating to the working class than millionaire socialists.