Most of these alternatives are not installed on windows server for security/maintenance overhead reasons by IT administrators and developers are forced to live with slow and cumbersome RDP(not to mention zero capability for scripting) for accessing machines.

Now that Microsoft has finally realized the importance of remote shell access for servers and has included it in OS by default, it will become convenient alternative to RDP.

Not to mention SSH via cygwin, which worked pretty well even back on Windows XP.

Winrm stopped being usable if the machine was overly remote.

Yeah sure, but this was before Powershell was available afaik.