Whoa lil' doggy...
I think you jumped the gun there, pardner. Not a flame, just an observation. You are correct to point out that all casual users, and many of us geeks too, could benifit from a two step install, like you describe (1. Insert CD. 2. Click da button.) No argument there.
What I think Mr. Corbeau was describing, however, was the technical aspects of how such a system would work. So, after step 2 above, some script would run that uses make instal, or tar.gz, or whatever, to do the actual install. This to the programmer has advantages in that everyone already know how these tools work, and in fact the tools are already written. The Linux community just needs to agree on which tool(s) to use.
Ok. That's it. Just sounded like you may have mis-construed (sp?) the original post.
So really the first step is to: get enough people to agree that a unified installer is needed (not everyone, just enough for a workable quorum). If you don't get that, nothing will happen at all.
So who wants to send email to Red Hat? and Debian, of course and Suse and all the others and maybe folks like VA and IBM and maybe the BSD crowd as well (my prejudice, BSD is good folks, I like 'em).
Well? Stop readin' and starting emailin', y'all. :-)