You don't have to be a Linux Guru to know how to work with the cPanel web interface. In fact, that's the purpose of cPanel and WHM, to simplify administering a web server.
For the past several years, Linux has been gaining heaps of traction in the OS market. People are starting to realize that there are actually other operating systems out there!
Drupal is a robust, highly scalable content management system, but there're some settings that often go ignored or forgotten while users are developing their Drupal website(s).