I think it's a more modern version of what we in EMS call "treat the patient, not the monitor." AKA, if your patient looks like they're in distress, is having trouble breathing, etc, but you throw them on the monitor to get vitals and it's reading that everything is within normal levels, don't just sit back and be like well clearly you are fine, stop saying you cant breathe because my little lifepack says otherwise. Either the monitor is wrong or they're doing some hard-core compensation to keep themselves within normal ranges, so let's treat them and not what the computer says.