Here are several law cases from the 1850s to the 1920s where bees stung horses or mules to death. There were no AHB here then...
See Earl v. Van Alstine, 8 Barb. 630 (N.Y. Gen. Term 1850) (horse killed by bees); Johnson v. Tillson, 36 Iowa 89 (1872) (same); Parsons v. Manser, 93 N.W. 86 (Iowa 1903) (same); Petey Mfg. Co. v. Dryden, 62 A. 1056 (Del. 1904) (mules killed); Ammons v. Kellogg, 102 So. 562 (Miss. 1925).
There have always been mean bees and people have always made bad decisions concerning bees and animals. No animal should be confined where they can't run away from the bees. Maybe they should train people what to do... Get inside as fast as possible. Inside a house, inside a car etc. Drive away from the place, then get out when you are far enough that no bees will come that far from the hive. Then run some more...
When I have seen bees that would follow really badly, they usually weren't stinging, they were head butting...
Most of the bees in AHB areas are workable. Some are not. But then most of the feral bees I've seen in the last 43 years were workable. Some where not.