dist upgrade question coz 14 rocks

OK, So I have 3 servers at work, all 13.1

After successful install of 14.0 this week - yah I know, likely only
weeks or couple months before 14.1 is out, but hey, least I know 14 is
mature ;)

I note that in upgrade Pat always offers the quick 'n dirty how to
upgrade everything, but never shows a quick basic way for bare bones,
like servers

So, If I use a cut downed version of his example, like

    #!/bin/sh
    for dir in a ap d  f l n t tcl  y ; do
      ( cd $dir ; upgradepkg --install-new *.t?z )
    done


removing kde  kdei , x , xapp, and xfce  and E (since emacs is built
with X and not before)
and I know the L will include some X libraries I'll need to check and
remove if I feel energetic enough,   will this upgrade everything?
the risk of breaking things is low ?

and yes, I know I'll need to go over and find obsoletes manually :)

TIA