You have OOB and customs tables that connect with each other and some of that are used for different model-driven apps. When you want to create isolated solutions for each model-driven app, the current mechanism is will prevent you and want to include dependent components.

There should be a way that allows users to import and export model-drive apps inside solution without having to include all assets of the table that the app uses, instead allowing to include only the needed components.

A possibility could be adding warning sign that informs the user of this missing dependencies but not prevent the user of performing the import or export of the solution.

Actually, to bypass this situation users, have to edit the solution.xml and deleted the missing dependency which it is not convenient.