Likely that there’s more to this, but I think it’s also important to remember that they did the same to some climate activists and that institutions in France are notoriously hostile towards the French-Muslim population, especially of (North-)African descent.

There are way too many people alive who still remember France having colonies. Levantine Arabs have a better standing due to some Palestinians and Lebanese churches having close ties to France, but in general I also wouldn’t rule out that this sentence is as harsh just because someone disliked by the government was too critical of said government. Although I have to admit that this is now speculation from my side

It could be true that she broke the law.

Breaking the law on this topic is not hard in France, since unfortunately it is part of the (post)colonial countries that equate anti-zionism with antisemitism.

So criticizing the settler colonial state of Israel can mean you break the law, without taking into consideration that Zionism is a political movement that has been criticized by Jews since its inception. Jewish voice for Peace have a great article about it: Our Approach to Zionism. And they are not the only ones.

Or supporting that Palestinians have human rights like any other person on this planet - like to be against Israel’s apartheid for example - is considered terrorism, more often than not.

Please, let’s not be so quick to defend France or any colonial country

Edit: A relavant article. It’s in relation to the Lellouche law, from Haaretz - BDS a Hate Crime? In France, Legal Vigilance Punishes anti-Israel Activists