Personally, I would want my client interfaces to know that a change just occured. The problem with your comparison is that rates change daily (possibly even hourly). A CSR would know that. Hotels don't change Category levels every day. This is usually a once a year event. I would have thought Marriott would let them know that a change was made. This would keep the CSRs from being blindsided by questions about and around those changes. And allow them to field questions a bit easier.