We're discussing this because he went and spoke at a public forum, and gave his expertise as foundation for why his speech should be influential. That can indeed be confused, and his obtuseness with not modifying his statements after multiple requests by the licensing organization would indicate that he meant this to stand.

The public are not experts on all things. Someone ignorant to the stages of licensing are likely to hear "I studied engineering and work as an engineer" and think, "I can trust this person with topics related to engineering." This used to happen, to undesirable effect, which is why calling yourself "an engineer" especially in civil engineering fields requires a license.