Makes sense to me.
Think about it - if the Warriors would've won, their outright dominance over the league would've been cemented (fair or not). Thus, it'd make sense to move East, and we were the only real consideration out East, especially with Al recently committing to the C's.
It's interesting to think what other moves would've followed, because I don't think the plan was to play as small as Horford at the 5 and Durant at the 4. I'm betting we would've went back and did the deal with the Sixers with Brown for Noel, Covington, and more.