The airline could send custom surveys based on your specific flight/seat. If you sit in first class, "How did you enjoy the first class experience?". If you ord

The airline could send custom surveys based on your specific flight/seat. If you sit in first class, "How did you enjoy the first class experience?". If you ordered food, "Did you enjoy your meal?". If your flight is delayed, "Did the delay impact your plans?" I think we both have zero evidence to back our claims so I wouldn't read too much into it.