Their hardware requirements do not say this, where'd you get that idea? Graphene has stated they'll work with the Motorola team on supporting their devices, starting with the successors of the Razr foldable and the signature line, but there really hasn't been any talk about how additional peripherals like aux would be a no-go. USB is also a security concern, which is why they give you the option to disable it outright, disable data or disable until after-first-unlock. I don't see what would keep them from implementing this for aux, although since it's unidirectional I'm not sure if it even makes sense to compare aux to USB. They've supported pixels with aux ports in the past, and I don't think it's inclusion would be a blocking criteria. The comment about the camera is also kinda misguided. They zero out the camera input if you disable it, unlike traditional android. You can have a camera toggle in your quick settings and keep it disabled literally all the time. Enabling it when you bring up any camera related app takes either pin or biometrics, having the hardware here really shouldn't be a concern since you can look at how the code handling it works yourself. I'm not trying to convince you to use a pixel or a Motorola phone, do what you want, but at least be informed about stuff like this when you state things as if they are facts.