You had just gotten into the league right before the deadline for Week 2, and your opponent had been trying to get a game with the slacker who you were replacing, so they deserved the win because they had been active on the forums and trying to get the match which their opponent didn't give them.
This is a 24 person league with the top 16 making the playoffs, so while you are in a small hole starting a team at 0-1-1, you only need to get to 6th in your division to make the playoffs, so it shouldn't be that big of a handicap. Your opponents have only at most played 2 games, and some of them have played only 1 (I just drew with a vampires team that just joined today) so I hope you stick it out and give it a try. Sorry for the drawbacks of being a in-season replacement.
--Dear Leader.