Yes, you are correct that specific situation require specific numbers.
I think the difference is that you can add evergreen content to the specific numbers.
But I guess if it is a daily 15 minute sales meeting for something like the number of sales made yesterday, it isn't going to require anything but numbers.
But maybe once a week or once a month, the sales meeting could address bigger issues. The "why's" and "wherefores" that are evergreen. These types of meetings can keep people engaged at a deeper level, rather than only look at numbers, where people can become disengaged and not motivated as much.
Does that make sense?