The less meek souls did not check or ignored the warnings and GIB N obediently stayed at the 4-level. Did the Souths use the stop card or coughing signals?
This is a hand where South apparently thought he had a maximum even within the 19-22 range, but I am talking about North's very conservative simple preference given that he has the perfect Kxx Axx in the minors and apparently his partner has a near-2♣ opener.
This is one hand that shows that even balancing over 3♥ shows 19-22 TP:
So is the moral of the story that sometimes 19-22 means 19-22 and GIB will jump to slam and sometimes 19-22 means "19-22 but please don't hang me"?