Absolutely not. However, at least in my opinion, there's a big difference between a good two star and a good three star restaurant in terms of food experience (for some reason there's not a substantial difference in price though). I would rank Le Cinq mid-range two star.

For instance try Bareiss or Traube Tonbach should you ever make it to the Black Forest in Germany (only decent place to stay in that area would be Brenners Park Hotel in Baden Baden). Those are, imo, top-range 3 Star restaurant (solely based on food, am not a big fan of the decor). You'll know what I mean thereafter.