Three pages? On this?
I'm just going to do what should have been done on page 1: our American friends don't understand the significance of a tie because they are culturally incapable of sophistication in sport. Now, before you think this is insensitive, I'm going to point out that these are the people who took a game primary played with the hands and named it "football" (just to be bastards about it, seeing as proper football was already the most popular game on the planet), and the national past time of the adrenaline equivalent of watching paint dry, also known as "baseball," whose primary purpose is to bore people to death by forcing the game to take 9 innings without the chance of a tie in the first and calling it a day.

In all seriousness, football/soccer is a game about optimal play in both offense and defense. Refusal to end a game in a tie punishes teams that have exemplary defense but weaker offensive capability, even if their opponent has no defense to speak of and gets by through purely offensive play. It would make for a less exciting game, not more. No one plays for a draw, but its a nice result for the defensive part of the team if a win isn't possible, and it therefore keeps them motivated. It's very similar to hockey in this regard (which only invokes the no-tie rule in tournaments due to the nature of hockey playoff series).