IF the allegations are true, I am on the side that says he misinterpreted the NDA. There could be reason to believe that the NDA had to do with his working with the FBI but the backdoor was a separate entity.

Either case, its all speculation. Hopefully this isn't a stunt to discredit oBSD. Some serious combing will be done in the code, I trust the oBSD team will do their best to clean up any mess that exists. We will all have a better oBSD after this.