Very strange indeed. I only see 3 possible explanations:
- You are not actually booked in l'Espace Affaires (biz)

- This flight is not operated by AF
- They have reduced the pitch on the latest aircrafts. This will be NNTC.
Can you check that your flight is operated by AF? Even on the massive B777-300, biz rows go no further than 12. AFAIK, there are no AF longhaul aircrafts with biz seats in row 15.