I'm sorry but 99% of the group planners/contacts that I've worked with over my many years in the industry have had the expectation that they know of any/all issues involving their groups as soon as possible - again I personally believe the GM was only letting the contact know there was an issue with one of the groups speakers and that the issue had been resolved (group planners/contacts do not appreciate being blindsided about issues with their groups and hotels regardless of chain do go out of their way to be sure this doesn't happen)