The DevTeam didn't.  All those blocks are the beta testers.  the Devteam mined 1000 blocks, or enough to A) ensure the anchor block wasn't going to lose a hardfork battle out of the gate and B)ensure that there were enough blocks to support our few test transactions.  We then went into open beta, and our hardware was quickly overwhelmed by the beta testers and the pools.  You had just as much chance to enter the open beta as they did.  Shoulda been watching better, kiddo.