I printed out the manual instructions from 6/18 and just looked at the instructions currently shown (online). Both say to go to a command line and type: "knoppix-installer". Well, there is no such file. I even ran a find and looked around the disk myself. Kind of difficult getting the install started when the initialization program is missing.
To answer your question, yes, I have several technical reasons for doing a manual instead of automatic install. More than I am willing to go though in this blog.