I think you missed the point here, doctor, lawyers and otherwise supposedly busy non-advanced users will not delve in about:config at all, hence cannot waste any of their time there.

It's only the advanced users who are willing go through this path because they want to tweak a settings. And the question would be, is it really worth making such an impractical tool out of about:config and thus wasting time of advanced users when it was designed for their own use, for the sake of keeping non-advanced users out this setting panel.