See, this is mostly because of 2 things. One, when changing filenames, users make the stupid mistake of changing the extension as well (having no extension that is), which of course, in Windows, it means the file won't be recognized as a media file. Two, blind you from the truth - you don't want users that can think, that's not what our bysiness is about 😏. Also the reason behind why Windows has less and less options and people that want to change something have to revert to registery hacks to do so.