They were not breaking copyright law at all. Interoperability is not a copyright violation. They were not breaking trademark either, showing a picture of a trad

They were not breaking copyright law at all. Interoperability is not a copyright violation. They were not breaking trademark either, showing a picture of a trademark is not illegal, unless it causes confusion in the mind of the corner. but that would be avoided by adding a simple disclaimer when shipping a cartridge or loading a game.