Although Reuters is indeed reporting the story like that, other news sources are focussing on the privacy angle and not mentioning the defamatory claims.
Maybe Reuters is right, maybe it's wrong but its article does say "Binoche did not rule on the whether the information contained in the article was defamatory." However, with El Reg's opening lines ("A French judge has ruled that Wikipedia is not responsible for defamatory content it hosted on its website."), you wouldn't know that - nor is there any mention in the article about the invasion of privacy angle of the case, which is pretty central to the whole thing.
"And describing someone as gay can be libel - just ask Robbie Williams or Jason Donovan."
True, but remember Kirk Brandon's ill-fated lawsuit against Boy George?
In any case, weren't these cases in the UK, rather in France?