Keith choosing to try and sell his plan as not being like Corbyn, even though he was a part of that at the time shows that they possibly feel that they can rely on the 'only Labour' vote no matter what, and are hoping to suck in a few middle ground tories that can't hold their nose and vote Sunak.
The comments suggest this may not have been as well received and believed as they would have hoped for. Burnham did postpone the one in Manchester though.
