Feel free to do the same and send a complaint to your Mazda dealership/representation.
In the MyMazda app you can find the contact email address.
I don’t really get what is their point with the DMCA. What value do they add to their customers with this action? And of course, why Github redacted all the names in the DMCA application, when it would be important regards any complaint towards Mazda to know who had this great idea when it comes to responsibility of damaging the Mazda brand.