"The point to notice though is "and it was not required to be broadcast or cablecast" - something wrong with a system where that's true. What that is is touched on in that last verse but one of the song... "

What?? I think you are confusing the meaning of those words. Woody Guthrie was not talking about stealing or piracy - his words were all about being treated fairly and receiving pay for honest work.

The concert was available for free to all who wished to attend.   Where is it written or inferred that everyone in the world are required to witness a broadcast of that event?   Who would you like to pay for it - the taxpayers?? You may not realize it, but the concert was not paid for by public funds. I also understand that HBO had indeed made the production available for all who wish to see it - around the world. Their may be issues with the website, but I would check your local cablecaster.

I'm really beginning to think that Woodys words are being misinterpreted. He wasn't creating an open call for greed and everything is free.