Lynn is correct, the official statement is clear as mud. However, it is the ND card that is no longer sold at the airports. It's a mystery why the statement doesn't just clearly state that. The IDF Mobilités marketing mixes the words: cards and fares, which might make sense if the ND card had only one use, the weekly pass, but you can also load a monthly fare (and probably the day pass as well).
These are basically the same people that came up with the ticket jeune weekend (no longer sold), which was a day pass, not a single ride ticket, and was only valid one day, not the weekend.
If you have an ND card already, reports are that you may recharge it at either of airport kiosk locations.