I think that your idea is good in theory... I would bet that Increased automation of Linux would upset many 'hardcore' linux users. I guess that these folk typically want to tweak and fiddle around with their systems themselves... A automated program for this type of linux user would be anathema to a user having full control over their machine.
For this reason some linux users avoid using simple distributions like Mandrake, Suse etc, prefering to get down to the basics and doing things for themselves... it is essentially an aspect of the the hacker ethic.
An automated tool like you are proposing might appeal to people who did not have time or inclination to learn the various linux commands, but im not convinced that that kind of individual would be using linux in the first place...??
But my opinion is simply to do what interests you. See whether you can design / develop a program like this & get other open source programmers to get involved. You never know until you try...
good luck