The Baron – I’m not sure how this relates to this accident – there’s no suggestion that the crew did anything wrong up to the point of touchdown that we know of yet – whether that changes or not – we’ll see with the FDR data etc.
Straight off the cuff, I can think of one situation where the safety factor could go straight out the window – runway condition being nowhere near that reported – whether it’s general weather phenomenon (vis, wind, shear) being different, or the real and reported braking performance/runway condition being radically different. It’s been a big feature in several notable accidents – including, if I remember correctly, the overrun at Midway.