But it was a missed opportunity.
How would the waiter remember to mention this request to management? How would the manager know if dozens of people were asking for the same thing every day?
That restaurant (and your business) should have a system in place to capture unfulfilled customer requests, and incentivize the entire team for reporting them.
No single request may be significant, but little things add up.
This is how you create a culture of wowing people.