Japanese word banned by a South Korean television station

Is this normal behavior?  

South Korea’s largest television network banned a South Korean idol group’s video because they used one word in Japanese.  The word used was “pika” meaning “glitter,” flash,” or “sparkle.”   

When the group removed the word, it was allowed back on the air.

K-Pop sales in Japan

Related articles:

http://blogs.wsj.com/korearealtime/2014/04/03/crayon-pops-uh-ee-banned-for-shiny-japanese-word/

http://kotaku.com/korean-tv-network-bans-pop-song-for-using-japanese-1557453217