Having studied in graphic arts and advertising while in my schooling years, looking at this new design, the outer blue trim looks like a flowing electric current, the "g" looks to be the head of a plug, and the "m" are the plugs three prongs, plugging into the underline, all representing the future of GM being electric, and being lower case perhaps this symbolizes a smaller foot print on the environment. No charge for my expertise here, your welcome 😌
Sharing a similar educational background, I can appreciate your analysis. It really isn't an interpretive overreach. I can see it.