Yes, a design document that is "20 to 60 pages of vague notes" does mean nothing. A design document that represents a complete, playable game removes the risk that exists with the type of "vague idea" design documents you are thinking of. That's a point I gave up trying to make 15 years ago.
Indie games are not the hobbbyist game industry, and have nothing at all to do with it. In fact, indie games pretty much the exact opposite of the hobbyist game industry who made by far the largest, most detailed, and complex games ever made. My blog can teach you a little about the forgotten hobbyist game industry... http://www.gamasutra.com/blogs/MarcMichalik/787769/
Every person in the world does not have a good game idea. Good game ideas are very rare. I see the games that the computer game industry makes, they have yet to come anywhere near approaching the hobbyist game industry's knowledge of game design. If they were going to make a strategy game that could rival my Cold War game, or Armageddon, I would think they would have done so at least once in the last 25 years... they have not. Why would I expect that, all of a sudden, now they are and I just don't know it yet? It more than unlikely, since it would require a quantum leap on their part from where they are now.
I didn't make a company before I made a game. I had entire trilogy of games before I made a company. A "Big Three" designers game design document IS a PLAYABLE game. People in the modern game industry have never been able to comprehend that fact. Our design documents are PLAYABLE GAMES. Finished. Done. Playable.
Tom Clancy is dead. He did not make that game. It is an Ubisoft game, not a Tom Clancy games. Clancy was an author, he wrote books. He didn't make games. Only Sid Meier can make a Sid Meier game, only Steve Cole can make a Steve Cole game. More obviously true words have never been spoken.
I already know all of your responses, these are all the same incorrect beliefs I have been listening too for over 20 years now. I know you believe these things deeply, but many of them are simply incorrect. The modern game industry has a lot of things wrong, the belief that a design document that covers all aspect of a game is "impossible", for example. How did our games ever even exist if that is true? Have any of you ever thought about that? If it's "impossible" how do ASL and SFB even exists, then?
Obviously, I need to find a way to make Lost Art Studios real. That has always been the only way, the modern game industry doesn't hire game designers, they hire level designers... or assistant designers at best, by our industry's definition of it. So the only way for a game designer to make computer games is to start their own company, which I KNOW I can't do. There has to be some way of doing this without trying to make a lesser B-game version of the Cold War game. I really don't want to do that to the CivKiller, and wouldn't have the money to try any time in the foreseeable future anyway.
So far, nothing seems to have changed and even revolutionizing how games are made with Rube does nothing to help. I would think this situation would be viewed as a "problem" by a game industry that took itself as seriously as yours claims too.