Well, I'm not aware about this special case you are refering to, but this is a different problem than preserving the french language. What you are talking about is that when you are selling a product or a service in France, you must provide user manuals and support in the national language (french). So it's just a law which purpose is to guarantee that the customers will be able to have the best experience with what companies are selling them.

I guess that would not be possible in some countries like US where there's no official national language.