Your final paragraph is kind of the central point they’re making, though. There seems to be a public mood of antipathy towards incumbent administration, which is bad news for Biden and the Democrats. People are fed up of the way things are and want a change, and Biden is deeply unpopular.
In order to convincingly beat Trump they need to do something bold: either offer a fresher, younger candidate or make big, daring bi-partisan policy plays on healthcare, education, more affordable housing, etc.
If they do nothing but stick to the old “vote for Biden and ‘business as usual’ because it’s the only way to beat fascism”, it looks like it may not be enough.