FuxxNA play super methodical, slow, extremely heal centric and only engage from far away. All you have to do really is spam from afar, dodge incoming spam and bait. It is a playstyle that only really works if you have a point lead and can afford not to push.
EU plays in a way that assumes that they are losing and need to bring the comeback. In that situation it becomes idiotic to play nice, clean and methodical, because if you're losing then it's because the enemy is better at it than you are. To break it you need to pull in the classes and playstyles that can reliably secure frags, thus big plays.
https://youtu.be/QBs-FLUOgEw?t=1m50s
In what Universe would TLR have won this match if not for the flaming desire to win at all costs? Frankly, I think this makes for the best possible viewing experience.
*insert warhuryeah's crowns joke here*
Nah but for real what was the last time you watched an na match because apparently you havent seen any since the HRG era