Call me dumb but it sounds like Lewis was advised by the team to let Trulli through, clearly there was a lot of confusion and being so near the end of the race it's understandable not wanting to get the decision wrong. If I had have been in Lewis's shoe I would have done exactly what the team advised without question.
They also said they were checking with Charlie Whiting, now if that is correct then I am struggling to see how Lewis and McLaren got disqualified.
This is FIA shitting of McLaren and Hamilton all over around.