What if the miscommunication is 50:50, rather than just the candidate’s fault?
Working in an international organisation I became aware that people from Europe vs. the US speak a different corporate language. At its most extreme, smart experienced colleagues from the US would say things and I literally wouldn’t understand their meaning.
However, colleagues better versed in that particular corporate dialect would absolutely understand their meaning, and might think what they were saying had great value.
And the flipside is that I must assume that at times, my (clear direct, I think) European communication could also be misunderstood.
Which is to say: a miscommunication in an interview might be as much your fault as theirs; and you may reject excellent candidates based on this.