Muni declined to comment when we asked them why they weren't participating. So we'll have to assume it's because their engineers are already in way over their heads; and nobody there has any idea what they're doing, and they can't hire someone who does because they Mayor spent all their money.
UPDATE! We asked Muni for comment last Friday, the 25th; and we'd originally intended to give them a week to respond. But we accidentally hit "publish" today instead. Rather than un-publish the post, we'll leave it up; and we'll let you know if they ever wind up getting back to us.