Persistent or recurrent" behavior pattern of "sufficient severity to result in significant impairment in personal, family, social, educational, occupational or other important areas of functioning."
In my opinion its not a real health disorder because it apply's to almost every gamer who likes or plays video games in themselves
Most kids play video games and its not like everyone will stop playing them. Unless you have some issues and is effected by games like call of duty ww2 and viloent games like that.
Youtuber's like mark and jack are effected by this because there channels are revolved around gaming and that's how they make a living.So no i do not think that they can call gaming a disorder.