Does the appeal letter address each and every argument made in the appeal?

When an appeal is denied, the appeal decision is to affirm and adopt the Regional Director’s determination of the material facts, the applicable law and rationale for finding that the evidence does not establish an unfair labor practice.  Therefore, if the factual and legal issues have been correctly and sufficiently addressed by the Regional Director, the appeal determination letter does not restate this discussion. Rather, the appeal determination letter incor