More than once per second (in fact, more than many times per second) means the difference between FOD ingress failure mode and, say, a spontaneous single blade failure in a turbine, between a synchro follower field inversion (think of a compass needle flipping around in an electromagnetic coil forcing the table it sits on to try to re-orient itself to the new reality) and a hard manual input, between externally-induced overtemp and a fire starting in the monitored system, not to mention vibration-induced momentary shorts playing all kinds of hell on both digital and analog control systems.

People really ought to try to grasp how quickly things can go wrong in the real world, and how difficult it can be to tell what made the nice shiny silver bird look like the crumpled foil discard of a cigarette pack smeared with a poorly-preserved meat jelly. You only have to see one used-to-be jet (complete with used-to-be pilot) before you start wondering how anyone could make sense of it -- and that's with the physical evidence in hand.