Is this a play on media trying to sell bidenomics as good for common, or most, people?

Yes, but in a way that makes it actually correct.

It’s about assuaging fears of people who think Bidenomics are extreme and will be worse for the working class than the Reaganomics that’s still somehow popular with Republicans.

It’s not a whole-hearted endorsement of every aspect of Bidenomics or a claim that Biden is a true leftist.