If we only consider is distracted, without also considering correct predictions, we might conclude that the distractor hypothesis is correct: the 192 instances in the group are all cases where BiDAF predicts a wrong span that has the same entity type as the ground truth, and the group accounts for 5.7% of all BiDAF errors.
looking at the groups in succession reveals a different, and more complete story: BiDAF predicts the exact correct span (exact match) 68% of the time overall, which rises to 80% when the ground truth is an entity.