Not really. Biden had already recovered before the debate. Harris was already dropping.I think the opposite. People went so hard on Biden that it became a self-own and it started to seem like they were crititizing Obama. The most no fly-zone area of attacks against him was his time as VP, because, honestly, it really is a direct criticism of Obama since the VP can't really do shit and several of the candidates went there.
Also Booker was effective in his criticism that Biden can't have it both ways and keep claiming Obama success as his own but take no responsibility for anything negative.
I mean Biden refers to those eight years regularly as the "Obama-Biden Administration" lol
The only meaningful movement in the last few months has been Warren rising.