Not being a GOMER at all, but having plenty of offshore time elsewhere, I make the following points:
Is it possible to park the 206 in the middle of the deck, and when someone else wants to land, just fly it off whilst the other does its own thing? Wouldn't that be extra revenue time, the repositioning of the aircraft for landing traffic?
Or were both aircraft going to be shutdown at the same time?
Or was the 206 pilot off duty?
I guess if the 407 had landed and shutdown first, there would not be enough room for the 206 to land?
I know on some decks I have operated off that if a 412 has landed first then there is not enough room for a 212 to land, but if the 212 went in first and shutdown then there is plenty of room for a 412. And as many times as I've tied down a 212, occassionaly for whatever reason the next morning I've found the blade come adrift. I would not want to share a deck with a another helicopter, tied down or otherwise, if the rotor disc arcs infringe on each other.
All my offshore time has been with oil companies who own their own helicopters, so the commercial aspects I'm familiar with are probably far different to what they would be in the GOM, where the operators are out to make a dollar. I think this would be an interesting topic; exploring any significant operational differences between oil companies operating their own aircraft and having contractors.