Calling an executable "Software Manager" is legal, but it's also inconsistent with other executables. In this case the executable is "mintinstall" and it could

Calling an executable "Software Manager" is legal, but it's also inconsistent with other executables. In this case the executable is "mintinstall" and it could have been called software-manager or softwaremanager. You are right, the human readable name is generally different from the internal name, but the internal name should be invisible to a GUI user. Here the problem is that the name of the executable has made its way to the GUI.