The need to evacuate a premises is only one of a number of foreseeable emergencies that will need to be dealt with.  Each will need an Emergency Plan to determine the actions (or drill) needed to deal with that emergency and that drill will need to be practiced or simulated in order for there to be confident that the appropriate actions will be undertaken quickly, effectively, and without panic should the emergency arise.
So to answer the question: No, an Emergency Evacuation Plan is most unlikely to be adequate to meet requirements. Just three examples of topics about which emergencies often arise: power loss, storms, and collapse of racking or other indoor structure.