The net is open if you have know-how beyond booking guest talent oneself or through a 3rd party e.g. booking agent if you understand something about the tech that gets your product out. That was the position I agreed with. Why? 'cause it's right.
The net is open but there's a question of how easy or even if it is possible to gain an audience comparable to what the "closed" web offers. If you don't gain popularity then it is not as easy to get high value guests in the first place because those too may seek a big audience or give more value to venues that offer it so I'm not sure I get what your point is after all.
Dude! Time to grow up. Unidimensional people are boring. You wanna know what? If all Joe can do is yack in the microphone ... Maybe the fact some of his post casts went missing is much Ado about nothing. Wanna also know what? MLK or Ali would figure out how. Maybe Joe or you or both are unmotivated