This is good question...

No doubt there is a market for Linux servers that hold your hand and do not require any particular experience to administer. That niche is already almost completely filled by Windows server operating systems.

But if you did that to most existing Linux server setups, what you would end up would be something that is every bit as crippled as Windows server setups typically are, as in the simple things are simple, and the hard things are impossible. Can you imagine the user interface required to completely configure everything Apache can do, for example? Or Bind? or Exim? or practically anything else that does anything serious?

Without hundreds of millions of dollars in GUI configuration tool investment and automation interfaces to work around them, a text configuration file free Linux server distribution would either be a toy, or something that targets a relatively narrow market. For desktops though, it is probably great. Maybe for SOHOs as well. But not for practically everywhere where UNIX type servers dominate today.