IMO quite the opposite....concept trucks have been used in truck shows/exhibitions for over 30 years simply to gain free publicity and to foreshadow radically new model designs . Tesla has simply taken that concept one step further and commercialised it. Just imagine in a few years time what these rare Cyber Trucks will be worth to collectors?
Here is a more outlandish example of a Concept Cyber Truck which hasn't been "commercialised" but is merely for attention/free brand advertising :
IMO, the Batmobile style is solely to gain attention .