There's a quote from the above link; "An updated version was released last week to include more details of what else was happening in Argentina at the time."
2nd edition I'm thinking.
I'm spitballing but I'd say that the new info is accurate. From other sources I recall something about the LZ being compromised, but I'll have to dig it out to make sure.
Personally, at the time I heard there was a crash & all and sundry were thinking "WTF! On the mainland!" The cone of silence was then employed.