VIP guests with big wallets booked in

Today our five teams were brought to a five star hotel in Sydney where they were all put in the kitchen and told that they have a challenge to make 120 mains, appetizers and desserts within the time limit of 4 hours. They were also told that 120 people will be eating the food they make and they will judge it. Some of the contestants passed but some just didn't get it. At the end they were brought to the tables and found out that there weren't any actual people eating the food.