It's called spin, just in case Biden should do well in the opening primaries and caucuses.
I've never liked Biden and never will like Biden. There's no spin from my side. He's pretty much as interesting to me as a glass of milk, and if I could chose between the two, 99.5% of the time, at the very least, I would chose the glass of milk. Why you so surprised? Did it get over your head that noone actually likes Biden (although he's not horrific like Cheney, who should have been almost decapitated for his war crimes by now).