A body with no regulatory authority issues a decision with no binding power on an advertisement that the advertiser is, in all likelihood, finished airing. Bold action, that.
Sounds to me like a bunch of bureaucratic pipsqueaks are trying to increase the perception of their power by issuing a decision that no party is likely to expend resources challenging, which will then look as if it had some impact.
It’s a good thing they don’t have the Internet over there, or else their citizens would be able to see the trailers as originally intended. Thankfully, since they can’t own guns legally there probably isn’t any gun crime anyway. *sigh*