My original thought was to look for likely places an ELF reader module might fit in the CPAN namespace hierarchy so a tree browser that started with everything below the top level namespaces collapsed made some sense. I guess my mind blocked out the top level ELF namespace as being inappropriate at that level - even though I knew it was there from the simple search you mentioned.
There is Discipulus's prior art for searching CPAN packages so maybe I don't need to reinvent that wheel? :-)
Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond