"Don't ask, dont tell"

I do not understand President Obama's decision to overturn the appeal of "don't ask, don't tell" by a judge. This issue has been a major issue of Obama's campaign and presidency, and after pledging to end the policy once and for all, he turned down the opportunity to do so. I know that he wants the decision to be made and enforced by Congress, but isn't the final much more important than the manner of means to get there? I see this decision of being more stubborn than honorable. I think the goal should have been to dissolve the policy as quickly as possible. As of right now, I am glad that the enforcement of "don't ask, don't tell" is temporarily halted.