What should the left’s talking points be following Biden’s visit to Poland?

It’s a bit odd to see leftist analysts, journalists, and commentators publicly debating whether Joe Biden’s strange utterances in Poland last weekend were scripted, off-the-cuff nonsense that this man frequently produces, or some other unintentional occurrence. Why not make some important points based on what he said, whether it was scripted or not? What does it matter?
Also, it’s surprising to see people getting excited about Biden’s admission that regime change in Russia is the American foreign policy blob’s wet dream. How could this not have been obvious from the start of the current crisis? (This is from 2014, not just the most recent month.)
In the second episode of our experimental sub-series within the “On the Barricades” project, you can again see our editor Boyan Stanislavski.