[thrashh]

It makes sense for a change about doors. Doors are old as time. Everyone understands how doors work. The impact of a door change is straightforward. There are relatively few moving parts involved in a self contained door (figuratively and literally).

[duckmysick]

It was a first example that I thought of. There are others, less straightforward changes in recent years. They involve safety teams, risk assessment, terrain awareness system, voluntary reporting programs, hazard recognition. They made commercial flights safer and we can measure it.

https://www.faa.gov/newsroom/out-front-airline-safety-two-de...