"Worth a try anyway."
I see you changed your post !
Yes, worth a try but I don't like the chances, even if it isn't so "super secret" any more but that is different to handing over data / info. If they did have anything I would say that Aus / US aircraft / ships would use it and suggest to Malaysia to help in that area.
As has been suggested by a SAR person before on another search, a discreet word was said to "search over there" without being told why and that is where they found it.