The FAA is reassessing some of its key assumptions. The agency said certification procedures are “well-established and have consistently produced safe aircraft designs,” but it is rethinking reliance on average U.S. pilot reaction times as a design benchmark for planes that are sold in parts of the world with different experience levels and training standards
The other consideration here is that if design benchmarks are based on the "average U.S. pilot", 50% of those U.S. pilots will fall below this.