So sorry this happened... it's always an opportunity to figure out what one can do to not have a repeat of this kind of demanding guest. First, the review is in French, so that already cuts down on the number of people who can and will read it. The review speaks for itself, with complaining about the church bells, only having dvds to watch, etc... Don't sweat it!! Your other reviews are consistently positive, future guests will be smart enough to figure it out.
But here is what I what consider for the future if I were you:
Make sure that somehow you will be able to be close to internet reception when you have guests and reviews are most likely to come in, so you're able to respond or post reviews yourself.
As you are not near your place most of the time, as it is in France and you are in then UK, make extra sure you have a good cleaner and caRetaker there. It sounds like a large part of the complaint was about cleanliness. If there is some truth to it, you need to be on top of it and have better cleaning service.
You could also take this as an opportunity to define your description with more details, maybe you need to state that internet reception may be spotty, that the TV is not cable (even though you don't promise that in your amenities, people may not look at that and then act surprised).Links to other websites get blocked out by Airbnb, check your listing, i would take them out. And maybe you'd want to post less pictures of the area but more of the place itself, with better lighting and better pictures.
Good luck!