I received an unofficial email from UCLA 2 weeks before the official decision letter, so this is certainly possible. I don’t know if the official letter was delayed by the department, the graduate college, or both. Regardless, acceptances from UCLA have still been trickling in, and no rejections yet. I don’t think these things are consistent enough for us to say what can and can’t happen, as much as we want to ?
Congratulations @toolkitsocio!