My view is that if this was a balked landing, spool up time is the biggest likely issue. With the thrust in idle, and the notoriously long spool time on the RR engines, an attempt to rotate for the go around with thrust wandering up from idle would be "interesting".
Can anyone tell me at what point the EECs go from approach to intermediate or minimum idle as all my FCOM says is "after touchdown"? If the engines had gone to a lower idle the difficulty could be greatly exacerbated.