Not every DT member agrees with all of Lauda's feedback or with each other's for that matter. Infighting is not unknown within the DT list, you know.
No, they are just too spineless to say anything about it, or take any action regarding it. I would liken it to a cop watching another cop break the law and beat on a suspect while cuffed. Sure they didn't beat the guy, but they sure kept their mouth shut didn't they? I wouldn't quite call that innocent, hence why they all get lumped into the same corrupt bunch.