There are some other things transpiring in American politics right now. But we must note that Democratic leaders are now unabashedly stating what Bernie Sanders supporters said over and over in 2020: the party pushed Joe Biden primarily to stop Bernie.
I think the insinuation is that Biden wasn’t picked by the Dem establishment because he would be great at the general, but because he would be great at foiling Bernie in the primary. The whole thing is that the Dem establishment’s priorities are such that they would rather lose to Trump than Bernie.
Centrists got their second choice in 2016.