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.
"It's idiotic to play tf2 and make the correct decisions because if you lose the other team is better than you, instead you should just treat every game like a product pug and go for frags and air shots"
I mean, yeah that works but only if the other team isn't better at botting than you, not to mention your assessment of both scenes' being completely wrong.
Also, linking to a SDB frag clip to prove your point about... EU players wanting to win more?