Right you are. Making it "simpler" at the cost of removing possibilities is not usability. That is dictatorship disguising itself as a service to the alleged "uneducated user". The Gnome people do / have done that, the result is an operating system which is nearly unusable. Usability is not some developer deciding which tools to have and which tools not to have, usability is allowing the users to choose but give pleasant defaults, so that the user can also choose not to choose.