There are a bunch of places in Lens where the current approach of formatters (a function "value -> formatted string", tied to the field of the index pattern) falls short, because in a lot of cases the context (in this case the visualization) has to be taken into account as well:

• Number histogram in a transposed table: The labels are built from the start of the bucket without information about the interval. This makes sense in xy charts, but in a table a range format should be used (1000 -> 3000, 3000 -> 5000 instead of 3000, 5000)