You appear to be very confused about the role the SEC plays in the industry. They're not a friendly, supportive legal advice service, they're
law enforcement.
In any case, even if the SEC did give out legal advice, I don't believe it would form any type of legal precedent. Nothing stops the next administration from taking a different view.
If you're a large public company knowingly entering into a regulated industry where your activities are considered by everyone to be a "a bit of a legally grey area", then litigation is the entire ball game. Do the thing, wait to get prosecuted, hope you win.
Alternatively, do some lobbying, get the law changed how you want, then do the activity. Been happening for centuries. Easy as pie.