Looked at the official site, search on 'martial' came up with one article, but for martial law, no hits for search on 'karate'.
The reasoning on thier teachings amazes me, how birthdays should not be celebrated due to the 'origin' of the celebration being with the wealthy and the supposed mention of birthdays in the bible are only associated with bad things (but don't read the first chapters of Job - Job should only be associated with the suffering of the witnesses) but then wedding rings, honeymoons, now even pinatas (where I have read an article that they are now ok because no one associates them with the origin), and wind chimes are now acceptable in spite of thier origins.
I can understand how some folks can associate the martial arts with fighting and in that case maybe even discourage it....but based on the origin...what a bunch of......