Both quotes 1 and 2 mesh, and I'm surprised two of the more respected posters here don't get that. He clearly states that it is only slow in comparison to basketball but is faster than all the other major sports. Unfortunately I can't agree because I think hockey is arguably faster paced than both (yet the scoring is more on football/soccer level).
There was a study that showed American style football has exactly 11 minutes of action (actual play time) the entire match. A game that lasts 3+ hours - yesterday's seemed to go on forever as I went to a party in the 2nd quarter and came back and the 4th just started (I love American football, don't get me wrong). Few American sports fans complain the NFL is boring. Yet even if the game was run real time for 60 minutes, less than 1/4 of the game time would have the ball in play. One of the great things about soccer is that the ball is almost always in play which means you can be mere seconds from the play that changes the game forever.
I also think many people that complain about the pace of soccer are limited to watching international games such as the World Cup once every four years when the sport becomes unavoidable. The club level typically offers a bit more scoring and more attack oriented teams vs. teams that "park the bus" which is what happens anytime a minnow takes on a giant. And different leagues have styles that may appeal to people looking for a different balance of skill vs. power and parity between teams vs. super clubs.