It was probably left out as there really isn't anything said there that the media hasn't already reported previously. From the filings in the very beginning it said that he showed LE his phone records, it was reported ages ago that he's on camera at Lowe's with how that ties to his phone GPS records and JW has never been a suspect. Without knowing precisely what was said they could have backhandedly acknowledged part of what Wallace has said hasn't been corroborated given how JW returned to the home not once but twice with a gap of hours inbetween:
http://www.cbsnews.com/news/detective-2-d-c-mansion-murder-victims-were-strangled/
You don't have to have been in the house to be a conspirator, though Wallace could have had a string of bad judgments as I think it's been shown that he has bad judgment. I'd really like to know what he was doing after he fled the scene for hours. I think Wallace may be in a position where he can't really be cleared by LE for the damage done to his reputation, like LE can't clear Wallace for lying to LE short of LE saying it was actually them who lied to the judge in the filing, they can't clear Wallace of taking photos of the money and they can't clear him for fleeing the scene while at the same time all along they've never said he was suspect so I don't think there's anything they can do as even if he's not a criminal he's going to look really bad.
He didn't flee the scene. They corroborated his movements, which was testified to at the hearing.