These things are not done in a straightforward and direct fashion, that makes room for too many crude mistakes. My nickel says the obvious, that appropriate American diplomats had utterly informal and non-binding discussions with the French, discussions that were more like a series of nods, winks and shrugs. Would the French like the President to be there? we ask. That would be great, they answered, love it to pieces but…we are naturally concerned with his safety and security. We quite understand your concern, we answer, but want to be clear that we take the whole matter with the utmost gravity, we would hate anyone to think we have slighted you in any way.
Perhaps you could have a ceremony of your own? they suggest. A gesture of solidarity is, after all, the entire point, geography is not pertinent. By which point in the conversation, our diplomats get the message that the French are not thrilled about worrying over Obama’s security. (Mon Dieu! What if something should happen to him on our soil and under our watch! * Merde!!*)
Perhaps the American ambassador would be appropriate, we suggest. Perfectly suitable, they answer, she is, after all, the ambassador… Plus, nobody knows who she is, she would not make an inviting target. Nobody said that in so many words, one simply doesn’t suggest that the American ambassador is a minor figure.
Gestures and shrugs, nothing explicit, it isn’t done that way. There was a minor fumble, a higher ranking official would have been more appropriate. But we give a shit, they know we give a shit, and that’s all that matters…
So the WH freely acknowledges a minor mistake, and the French politely decline to be insulted. Sentiment is expressed, dignity is preserved, faces are saved.