As the AC was advisory in nature, I wanted to find the applicable regulation. The appropriate CFR reference is 14 CFR 121.571 - Briefing passengers before takeoff.
(b) Each certificate holder must carry on each passenger-carrying airplane, in convenient locations for use of each passenger, printed cards supplementing the oral briefing. Each card must contain information pertinent only to the type and model of airplane used for that flight, including -
(1) Diagrams of, and methods of operating, the emergency exits;
(2) Other instructions necessary for use of emergency equipment; and