my argument is; whats so different about landing long and landing fast. You're using up excess runway that you don't have to. You are giving up your safety net. The first time you roll down to the far end of the runway onto wet rubber and scare the sh!te out of yourself, you'll think twice about landing faster than you really need to. Using less than full or much less than full may be an approved procedure from Boeing, but is an alternate procedure. You'll also increase your ROT, may increase your taxi time in
Thats my two rupees worth