The Joon brand has difficult to pin down. It's not a true low-cost operating model, but it was designed to 'feel' like one. It was launched as an airline for millennials but this seemed to have been quietly dropped. They even went on to adapt some of the center blocks of seats on the A340, as seats that can be converted into a bed for kids, which was obviously done to appeal to families. It would seem as if even AF were unsure of what Joon should be.
An ill thought out 'experiment'?