That is because Media play the same than in US and UK. Ignoring other candidates in order to create the fear factor, then it will be the usual blackmail Le Pen or else.
So, the else, whoever, will be elected.
But there is one outsider who can change the rules...
The rejection by the French of the oligarchy (thanks to the Sarkolland's policies) is so intense that Le Pen might be elected (for the same reason Trump was elected, Corbyn and brexit), but then she will have to get a majority in the Assembly. And this is another story.