That approach means they can only talk about publicly known AI techniques. You're saying if they want the standards to apply to proprietary stuff, they might just have to make it public. They still have investors they need to please right?
Also, if its some ultra important safety issue, then being a tad more open is the whole point of safety standards in the first place. No need to give them legal immunity.
Do it like the rest of the industries do instead of demanding your smoke filled rooms.