This is partly the reason why I have a rather low opinion on politicos here in the Philippines. I don't play or care about the mod (or the Source Engine-powered sequel for that matter) myself, but this reeks more of a band-aid approach when it has more to do with parental complacency, and it can actually lead to a Streisand effect as well.
http://www.gmanetwork.com/news/story/413042/news/regions/dota-banned-in-internet-shops-in-cavite-village