Sorry, your claim that CGI.pm isn't for networking is, well, silly.
As for CPANPLUS, if they want to keep "CPAN" in the name, then the primary way they are going to attach to CPAN is via a network. I don't mind in the least if they decide that this is not really the central purpose of the module and call it something having to do with "module management" or whatever.
But the point is that the only modules that don't have "::" in their names should be all-lowercase, that is, pragmas. See Filehandles vs. Packages: And the winner is... for one good reason why.
Other reasons include the "I used CGI" problem. Having a "::" in a module name can avoid a lot of confusion.
(but I plan to switch to "Person::Tye")