In Unifier, is it better to mark a package for production even if importing to a test environment?

Unifier v19.12.5

What would be the use case for marking a package for production and then importing to test? One thing I can think of is you can create the package once and then download as needed for any number of environments, either prod or non-prod. This could help ensure that the package is the same across the environments, rather than generating the package once for test and then again for production.