I have had multiple times that i used one micro- or nanoflow on multiple places but not always wanted to close the page. If you can choose to close the page in the properties of the button calling the micro- or nanoflow then i would not need to create an extra flow with a subflow and a close page.
Just ran in to this issue when trying to re-use existing microflows from different pages. Now I need an extra microflow with close page before calling the existing flow.. Seems like something simple so a bump to hopefully get this to production!