Another puzzle

Remember all that coverage of the French EU Constitutional Treaty referendum and how the French "overwhelmingly" rejected the Treaty with a 55-45 percent split. Many TV reports and commentator adverbs and adjectives described the rejection as an apocalyptic opposition by angry voters.
But compare that to the referendum in Switzerland adopting the Schengen and Dublin Accords by a similar 55-45 percent split in favour but described the win invariably as "narrow".