Not necessarily.
In crude terms, sound is more directly wired to the brain than vision (various reasons one of which was the nocturnal phase through which mammalian evolution went). The result is that response to a sound stimulus may be more "instinctive" than a light stimulus.
This is fine for telephone rings and alarms but not so good when a specific sequence of events has to be triggered.
The way to make MCAS safer seems, from what is being published here and elsewhere, to be to eliminate the need for it.
Biting the hand that feeds IT
