Some people go mad and baton all the way down a long log when they could easily use a wedge cut from a side branch to finish the job started by their knife.
However, for me the point about batoning is that you should be able to do it because you cant guarantee having an axe with you when you need one. This is especially true in the more survival oriented scenarios. Even if we are just on a happy stroll, it is often difficult to carry an axe without getting shot by an armed response unit.
For these reasons, my take on the 'bushcraft knife' is that it is a small knife that can step up to do big jobs when you need it to.