They were not the result of misunderstanding of what decel means, they were the result of firstly not noticing that the auto brake was not doing its job followed by a lack of support call to advise the PF as such.
So PF just sits there fat dumb and happy as the aircraft goes off the runway? I put it to you that ANY excursion is serious and potentially life threatening and not as you put it in rather a blasé and cavalier 'no major carnage'.
How does PF defend such shortcomings? 'Sorry for letting the aircraft go off the runway, but PNF didn't say I should brake so I didn't!'
