use Module (); is the documented way of not importing symbols into your namespace. use Module (); does not call import.

Furthermore, there is no stated requirement for all packages that use a module to use it. I often do use Module (); { package PkgA; ... } { package PkgB; ... } { package PkgC; ... }. Notice import was not called from any of the 4 packages involved.

A module should not rely on import being called. (Pragmas are another matter.)