It’s also possible a handful of power users use it a ton and found value, while the quiet majority only used it a few times because they were required to and didn’t see value.

We need more details to draw conclusions. For example:

• what types of tasks did people use it for? What roles did they have?
• what does the distribution of usage look like? What’s the median number of uses? What’s the average of users within one standard deviation?
• were they forced to meet some quota of uses, or were they left to choose on their own?
• what did the initial training look like?