That makes more sense on some of the stuff, but the auto gc and non-fast-forward server options are both older than that. If it was done that long ago, I can't find any mention of it in the paper, and people will use this, being from an authority like Google to enforce wrongful beliefs about the systems. If the document is that old, it should have been prefaced with that information - it looks to have been posted no more than a day ago.