The main point, I think you'd agree, is public radio is not a monolith with three active distributors and several additional program producers - all competing with each other in a free market.
Well, my view is that NPR itself isn't the powerful monolith some people think it is. It's part of a public radio programming resource system, all aimed at providing content for stations and ultimately the public. While some view it as "competition," others see it as co-operation. There's a lot of interplay among the various entities. We're talking about non-profits here, and there isn't much point to competing when service, not profit, is the motivation.
But there is when ego, revenue and bonuses are the motivation.