Here is the odd thing, some games actually have region detection built in, despite it being a region locked console! Bravely Default: For the Sequel (JP only) for instance detects your US console (tested it installed as .cia) and sets the menu and voice to English by default! It also shows on the Home Screen you can update it, the update
downloads however errors out when it tries to install :/ (something about download failed)
All .cia's installed with Gateway are 'region free' without having to patch them to be region free. I think people hunt down "region-free" .cia's because of ignorance OR they are still using the 4.5 CFW and require it for that.