Actually i hate to say this, i can name well over 5,000 peope breaking this law in multiple states and i could add more if you want to go countries with that, Online Skilled Based Games (according to Wiki)
Online skill-based games are online games
in which the outcome of the game is determined by the player's physical
skill (like fast reaction or dexterity) or mental skill (logic
abilities, strategic thinking, trivia knowledge). As in off-line games of skill, the definition has legal meaning, as playing games of chance for money is an illegal act in several countries.
Now, if i am not mistaken WGT, you could fight this with the simple fact they allow Chess to be played online which is a Mental Skill based game, NOT to mention the fast games (We call it Bullet) where each side has one minute to play the whole game which is now part of the Physical Skill (hince fast reaction), also there are multiple Servers which allow people to play in these States/Countries