There’s a new type of Creative Commons / GPL -like content licence. The General Asset License Information (GAL) is specifically for… “digital assets, shared or sold with the intent of being used within larger works”. Think low-poly 3D models for building new videogames with, that sort of thing.
As I read it (and I’m not a lawyer), GAL is not for final works. Rather it permits use of what the digital entertainment production industries often call ‘assets’, ‘content’, ‘merchant resources’, ‘stock’, and similar terms. A videogame partly made with GAL assets could be sold commercially and protected as a commercial product in the market. Even while the GAL parts of the game remained free for others to re-use again under GAL. The GAL seems to be aimed at allowing a creative maker to be generous with their free content, without forcing them to go to CC-BY or CC0. Presumably GAL content would not be purloined, aggregated and sold on by the Alamy-like companies, since GAL would only permit re-use as a part of a larger indivisible whole product.
Looks good to me.