Consider the phrase general template. In respect to Impress, Writer it controls the presentation layer and not the content. An user might generate from a general template, personal templates with e.g. fixed text sections, but those are harder to reuse for others.
In respect to Base, having a document with an embedded database it looks more like an 'personal template'. I'm not sure if you can have a Base document as a general template with a pure presentation layer.
Further it is not handsome to work with Base documents based on the embedded database: too error prone. So someone has to do quite some effort to migrate an example database as you delivered to a Base document with external database.
Also note that Base contains a large number of template tables to make a quick start.
So I tend to call your Home Inventory Master more an (impressive) example than a template.
But lets see what others think about this.