I have a theme on ThemeForest that uses this framework and incorporates post formats. In that theme many of the template parts for each post format have different markup, and so it makes sense there.
So, it all depends on what you want to do. How you want to call the template parts is totally up to you and your design, I guess. You can also have just one file like content.php where you have all of these if/else statements all over the place depending on the post format. I sort of think it’s more simple to have a simple template part file for each post format, but that’s just personal preference.