To be honest, I'm just as happy that Flybe didn't do it; what is needed, as I've said before, is interlining. There were a few AF partner airlines with 30-50 seat commuter aircraft - Britair (CRJ) and Regional (Emb 135/145), for example. They could plug into AF's network at CDG; OK, one can't build a route on connection traffic alone, but there are increasing business links with France and as a tourism destination, people always love Paris (not only in the Springtime!) and furthermore, in AF, you have an airline with the incentive to market Jersey right around the world.
AF has a huge network out of CDG and through CDG, you can access every major European market (much more than can be accessed through LGW, which doesn't even have a CDG link anymore). Given the significant numbers making that bus journey between LGW and LHR every day, the attractiveness of a straight through, interline at CDG must be high indeed.
OK, the route may well lose money, but I think this goes beyond mere profitability; this is something the states should be financing and facilitating. If a particularly destination is difficult and inefficient to access (as Jersey is now), that automatically undermines its competitiveness and its attractiveness as a business destination; a route by an AF partner would be a significant boost for the economy and I am sure, in due course, it would become very popular with islanders.