Replace the server GUI with a website
I do believe that servers do not need a GUI and probably should not have one for performance and security reasons. With Windows Server 2016, the default installation is Server Core, and I do think this is a very good thing.
However, there are scenarios when a GUI can be handy, particularly for small business with limited IT resources (for example, for the Essentials role). In this scenario, instead of installing a GUI on the server (with calculator, Explorer, Internet Explorer, etc.) the user should be able to access and configure the server from a webpage just like most routers or many other appliances.
Stay with Server Core if you want but leave the GUI users alone. I am using GUI on server since Windows NT and completely forget how to use command. Let me die with it, and I will let you die with your command lines. By the way I am working for big companies with more than 2.000 Windows servers and more than 200k of users.