I think you probably emphasize to much on importance of royalty free license?
Editorial Licenses can in fact have commercial uses, but;
Just remember that 3D models consist of two parts.
There is the 3D model and separately but enclosed with it the design it is depicting.
The 3D model is considered a work of art created by a craftsman (3D artist) and has copyright on itself apart form what it is depicting. The depiction/design is also a copyrighted work on itself. It can be a design created and owned by the 3D modeler or it can be a design from a third party.
Editorial License means a license to use the 3D model (the owner of it grants you rights as outlined in the license, including commercial uses). However, the design it is depicting or parts of it are owned buy someone ells, thus the customer may or may not need additional permissions from that owner to use the depiction/designs the way he is intending (there may or may not be additional restrictions there, depending on his use case).
Lets imagine some cases to illustrate some possible allowed uses and possible problematic uses.
Imagine you need to create a video clip for a client. The client is a seller of Mercedes cars and wants some eye catching graphics to show on displays in his car shop, he wants supper silk animated imagery of the lineup he is selling. In this case you have no problem getting licenses of 3D models depicting the Mercedes cars and use those models to create the visuals.
Now imagine you want to use the nice design and prestige of a Mercedes car to ad value to a product, maybe some sort of game or interactive media. You can get a license for the 3D model but you cannot use the design it is depicting to create that type of product (unless you get additional permissions).
Strongly simplified you can reduce it to some short rules that go as follows,
If those 3D models are used to help make that brand popular, then its usually ok.
This includes, educational, promotional or news (editorial uses as we call them).
If the design is used to profit from it and maybe damage the brand, then that's not ok.
This includes profiting form the brand directly or misrepresent it (profiting from a 3D model does not equal profiting from a design or depictions from a brand).
Bottom line, you can generate motion graphics from editorial licensed models and provide those with editorial license. If you make the motion graphic for a customer then he needs to be aware for its use case (must fit in editorial context), can be outlined in the contract.
Anyways, if in doubts regarding some uses and you want waterproof legal rights for your specific use case then just contact those who own the rights and ask for written permissions.