At points in the past, when you're gone beyond a certain range, the combat log reports experience but not RAF experience.
In the past at least, if you're getting experience at all you're also getting RAF experience whether it is reported or not.
Not saying that is absolutely the case now, but it has been before.

Easy method to check...
If your link is "A > B > C > D > E", take the "D" character out of the group and see what experience "E" gets without RAF.
Put "D" back in the group and see what experience "E" gets.