But the low scoring is actually one of the most important things in soccer.
A goal in soccer is so much more precious than in any other sport. It can win you the game, as almost a third of games have one or less goals in the game. So the euphoria when the team scores outweigh any "boringness" that preceded it. It can only be compared to a sudden death win in hockey (another relatively low scoring game, though a not as low as soccer).
Those not into soccer don't really understand this, and many have tried to increase the number of goals scored. But it doesn't make the game better. An 8-2 score is much more boring than a 2-0 game, as the nerve is there all game.