Err Guys,
Sorry I haven't read the entire thead (and appolgies if I comment on something already stated), but is it possible that McLaren are simply not used to having their race communications un-encrypted?
This would be the first time that their communications would be so publicly analysed and in the hard light of day perhaps their version of events given to the stewards was not quite as they implied.
I mean this hardly the first time that any team have decided to push the limit of what is true / allowed and maybe they have been very publicly and foolishly caught out telling porkie pies because they'r not used to all comms being reviewed.
If you compare this approach to the blunt honesty of Vettel who gat slapped 10 places for his troubles, you would understand why someone would state things to improve their case. I think they just saw the golden opportunity of gaining a easy place and took it and pobably regret it like you can't believe now.