I’m not defending it or attacking it, mearly saying that

They probably did multiple queries per day at the beginning, found out it isn’t worth it and stopped using it …

Isnt supported by the information given. The GP gave a story they made up about how usage would be falling based on nothing at all, I gave two other alternate stories about how it could be either rising in usage or remaining flat to demonstrate that we cannot say anything about rate of change from a single average.