This bug seems to only effect a small minority of players, otherwise I think there would be a lot more outrage than there is. There has been no official word from the devs about this problem that I could find. This makes me think that since we are such a small minority they don't deem the bug worth fixing.
I'm not going to make demands, or threaten to sue(that thread made me laugh out loud), or anything like that. However, I am going to say this: if this issue is not resolved I will never buy another Fallout game or DLC again. I'll still play them, I just won't buy them. Why should I when I paid good money for a product that does not work? Seems like a fair trade to me.
I really enjoy New Vegas, and from everything I've read online Lonesome Road sounds like an awesome conclusion to the other DLC. But even though I paid $10 to play it, and actually have a copy of it on my computer, I cannot play it due to this bug.
Please, fix this bug. I enjoy the Fallout series and would love to throw more money at both Bethesda and Obsidian to keep making more. But why should I if my money only gets me a broken product?