Because in the practice of law words have specific meanings and he’s skipping the step where he’s supposed to pretend she’s asking a reasonable question and rightly assuming “Neutral Judge” is a term of art in her head and not lowercase ‘neutral judge’ that would be used in a different context because, in this context, he is obviously a neutral because that’s what judges are so she must be meaning capital N J Neutral Judge which is not a thing beyond the normal meeting of neutral which is redundant when put before the word judge. Setting aside all the comments that will inevitably follow to impugn the judiciary, there is no such thing as a non-neutral judge. In other words, he’s skipping the fake part of the conversation and getting right to the point.