It is produced by American Public Media, which is a branch of Minnesota Public Radio (and Southern California Public Radio).
Perhaps you meant "US public radio" in general, but said "NPR". They are not equivalent, however.
https://shameproject.com/profile/adam-davidson/
NPR, despite what the parent linked, does almost nothing to police these conflicts.
If you say "American public radio", do you also include Democracy Now? Do you include shows produced by other local stations, including the ones that do not get distributed? NPR is not the totality of "American public radio".
Understanding the structure of public broadcasting in the USA is critical to understand why it works the way that it does. NPR is a distinct organization, even from CPB (Corporation for Public Broadcasting), even if its sensibilities are echoed in other public radio organizations (like MPR/APM).
As for your points about Adam Davidson, I don't find that shameproject.com page particularly persuasive. It's clear that Davidson's worldview does not align with that of the people/person who wrote the page/manages the site. I don't find this particularly remarkable or even particularly interesting. Davidson's worldview doesn't really line up with my own either. But there's a bunch of stuff on that page (the quotes in particular) which lack context, and a lot of other stuff that consists mostly of deeply subjective assessments and assignment of motive to Davidson without much evidence.
There are many other reasons I find it hard to take NPR’s claims of impartiality seriously, but this one is so glaringly wrong that it speaks for itself.
You mean NPR's business news show? That's what business news is, right?
When contrasted with something like Marketplace, which ceaselessly and glibly spins the darker realities of our economy to somehow be “upbeat” or “positive,” the difference becomes more obvious. And this is an editorial and ideological choice made by NPR, pursuing this framing.
NPR routinely runs editorial pieces that were pitched to them by corporate sponsors or their fronts like think tanks. They likewise have have discussion panels featuring these groups' talking heads. Listen to a few episodes of Marketplace if you want the most obvious corporate propaganda imaginable. Their impartiality is laughable.