Why on earth would the support pilot be "shouting"? One would have thought mandated support calls required normal talking style on the flight deck. One does not "shout" V1 or rotate, or 1000 to go and so on?
A37575, ok yes wrong choice of word there but am not sure an Airspeed prompt should always be in "normal talking style". There again when humans become maxed out the first sense the brain dumps is hearing so the monitoring pilot might, on certain occasions, have to do some sort of pattern interrupt to draw attention.