No, meditation isn't evil, its just not of a Christian tradition, is all.
There is actually quite a bit of meditation mentioned in the bible in both the new and old testement. Not sure why it is so unpopular in christianity though. You would think this guy would know this being as versed in the christian faith as he claims to be. Seems to mirror his knowlege of martial arts history given his supposed 50 years of experiance.