My colleague says:

"The new 3D Texture tool isn't the miracle feature that it first appears. This process creates a "graphic body" that can be exported in a form (STL) that is suitable for 3D printing. However, it will NOT export as a true solid format (STEP) that would be required for creating an injection molded tool.

On screen you see a 3D texture, and it will in fact will export as an STL file (suitable for 3D printing).

However, STL files are just a triangular mess and not true solid. You can see the crude mesh when zoomed in.

A STEP file (true solid model) saved from the same parent model in SolidWorks and the texture is now lost. 

To create a model suitable for injection molding will require manually modeling these features."

Is my colleague correct, that creating a model suitable for injection molding will require manually modeling the texture?

Or can we easily convert the 3D texture to a true solid model?