I know you are still in LB is our savior mode so this won't make sense to you. The number one reason CLE won was because of their defense. They held the best scoring team in the NBA to just under 100 a game. Of course you can counter that best part of their defense was the block.
Cleveland was the 10th best defensive team in the regular season this year - GS was #6. Let's not pretend this was anything like the NFL, where Trent Dilfer and Brad Johnson won SB's on the backs of defensive juggernauts (you can probably throw in Manning for this year
). It's a totally different beast. In the NFL, you can literally win a championship with just your defense. In the NBA, it's probably more accurate to say that the game changes in the playoffs and you need to be equipped to handle it - unlike, say, the 7 seconds or less Suns, or some of Webber's flashy Kings teams.