I think you taking the examples more literally than the author intended (NB. the authors mothers tongue isn't english).

Some of the points I believe the author is trying to get across:

  * Always have "use strict;" (and declare variables scope)

  * Make use of CPAN (eg. Term::Readline)

  * Don't use indirect object syntax

  * And use Moose if doing OO

These are all good modern perl practices.