Unfortunately, the guy hasn't taken a look at the definitive skill tables:
http://www.fiestafan.com/forums/showthread.php?t=4972
Otherwise, he wouldn't be saying some of the stuff he is.
Also, this was written a long time ago, or with little experience too.
If you notice, the "Mage party" is largely lacking validity.
Having 3 level 60+ mages results in quick kills before devastate wears off on the highest level monsters in the Forest of Slumber.
Although this is generic, he really should have divided the party-types into respective level ranges.
Alot of the information seems impractical because axe-fighters can tank.
Furthermore, you dont need to empower mock or kick at all. Axe tankers can keep aggro through high-hits of devastate.
That guide needs a tuning.