The advantages of simplifying system installation files are obvious: 1) greatly shortens the installation time of OS 2) saves a lot of disk space occupied by system partition 3) makes the system run faster 4) there is no need to manually remove unwanted/unused files one by one after installing the system (otherwise, that’s not only extremely inefficient, but also error-prone, and the these files can not be removed completely. So it’s better not to install them at all).
