Don't compare English localization to French one too much.

The French localization was very crappy at first. ARR is just plainly horrible, especially the patch (Midgardsormr monologue is almost complete nonsense with a lot of ommited or deformed things for exemple).
HW is a tad better but still have a lot of things ommited or deformed.

Stormblood get better and it's closer to JP text but it's not perfect. And from Shadowbringer it's really good, with some error from time to time, but thoses doesn't really affect the story.