@theDanielJLewis @adam @js @dave I think you should build it. Happy to help.
As you're aware, I have regularly whined that "The Podcast Index" and "The New Podcast Namespace" are two different things. As Marco proves, you can use one without the other.
We should use this criticism to learn and grow Podcasting 2.0, not to retrench behind the singularly unhelpful "podcasting industrial complex" bullshit. If the big boys trusted us and adopted the spec, that would be most helpful.