I think because the majority of players in the world aren't the technically skilled type. Probably only 1 or 2 percent of players are that skillful and gifted that they can dribble around people for fun. There are hundreds and hundreds of Dunfields in the world, but only several players as skilled as Messi or Ronaldo or Pele or Maradona. So, if you have a player in your team that takes out the threat of one of the world's best players, you praise them for it. I know its "dumbing down the game" in a way - but if you are palying against a team that includes Messi - you FIRST work out how you are going to take his threat out the game. Do you double man mark him, do you get a guy to JUST follow him aroud the field as his shadow, do you always push him onto his "weaker foot" (he doesn't have one, so that wouldn't work!). If all else fails, your Dunfield/jones/Wise/De Jong* gives him a hefty reminder that he can't play pretty football in his pink flourescant boots without being tackled hard occassionally. You then praise them if they "take him out the game".
(*there's no way I'm doing a literally comparison of Dunfield to these others players, before somebody bring that up!).