Who would you "mention" it to? The JD folks so they don't add the GC team into the state draw? I think I would want to know the exact circumstances you're referring to (I think I might), But, if the event didn't meet the rules to be a qualifier, then it doesn't qualify, and, SHOULD HAVE been known up front. If the organizer misrepresented their event (lied to the competitors) and it's not a qualifier, then it should have been mentioned by the reps at the end of the contest. It should probably still be "mentioned", but, that is a tough call. It could paint you as the bad guy for ratting out the other team, and the real a$$hole jerk (the organizer) gets off.
Teams being misled by a screwed up organizer is punishing the wrong person. The GC team goes away thinking they're at least in the draw, but, NO, they got screwed up the butt by a deceitful organizer. People do certain contest because they think - or are told by the organizer - it's Jack eligible.
I think the organizer should be punished by the sanctioning organization, probably KCBS in this instance. Banned from organizing for x number of years is all they can really do, but, at least it highlights who the true bad guy is.
If nothing else, after all is said and done come November (after the Jack is over), I would at least tell KCBS and request sanctions be levied against the organizer if they misrepresented their contest. If the reps turned a blind eye to an obvious misrepresentation, then they should be sanctioned as well. We work too hard to be unknowingly screwed over.