A small section of PC users download Windows 10 ISO whenever a new version of Windows 10 ISO is available so that they can perform a clean install of Windows 10.
The same URL, if you visit from a Mac or Windows Phone, you get direct Windows 10 download options instead of options to download the Media Creation Tool. Sure, you have a watermark, and you cannot change the wallpaper, but if you are a Mac user and you want to tinker with Windows 10, there is literally nothing stopping you.
Windows 10 Media Creation Tool 6.117 | 17.6 Mb