For Windows I would say it is. Windows doesn't come with vi, nano, or any other terminal text editor, and some kind of text editor is needed for pretty much anything you would do with a computer.
I have never seen non techie users open notepad or edit config files. In fact I've heard people say that Notepad sucks and that MS Word is better, meaning they are so non techie they can't imagine a use case for notepad.
I doubt this is the paradigm that Microsoft would like to promote. Interestingly, my limited interactions will Windows 10 I haven't had the chance or need to use a text editor.