The concept is risk homeostasis. Generally, the safety feature must be obvious to the user. For example, airbags have little affect not do side impact beams. However, better tires, brakes and suspension do. In airplanes I expect BRS has some (night flights, low IFR, mountains) but I personally suspect in-cockpit weather has more of an effect along with GPS. Risk homeostasis isn't totally a bad thing. For example, people usually buy twins because they want to fly more challenging missions. People get IFR capable planes for the same reason. Probably the all time biggest offender is the attitude indicator. Moreover, according to risk homeostasis, people adjust to the same PERCEIVED risk level. Often perception doesn't match reality. I expect the introduction of the AI resulted in people taking on increased risk that they perceived as being more mitigated by the AI than it was.