grouping

hey i wanted to know all your guys/gals opinions on people who group, for example i am playing against a group of three that has this funny ability of playing at the exact same time. i also checked their games and it turns out that they have ALWAYS been playing together. personally i think this kinda sucks the fun out of the game since they are getting an extra advantage that not all people can get. i understand if a group of friends want to play together but it gets to the point in which they win only because of this advantage.