> My take is that people saying sharp knives are safer don’t understand how average people are using knives.

Sharp knives are safer.

Bad knife technique is unsafe, regardless of sharpness, but with a dull knife you lack control even with good technique.

> none of the story included a person who was perfectly happy with their dull knife cutting themselves with that dull knife.

People that are perfectly happy with dull knives cut themselves with those dull knives all the time. Sometimes, that's the spur for people learning how to use a knife and becoming unhappy with dull knives.