The Sheet metal notes do not contain the bend radius automatically. A user could manually add them via parameter, but this is not practical. - at all. The Bend Notes can grab the bend angle and the direction automatically, but not the radius? SolidWorks notes contain the radius. We do have parts that have different radii bends., and nearly different radius tools. What good is a note that contains only partial information?
In order to accommodate existing notes and drawings, use a config option to control the showing of radius or not. Defualt to no.