NER review datasets with partial overlap while keeping all texts

The --auto-accept option only automatically accepts examples where at least two annotators agree. Some of the details of that behavior are explained in this thread:

I'm wondering why you'd automatically want to accept annotations if only a single annotator was involved. It could work out, but you are risking accepting candidates where annotators might be disagreeing.

Could you give a bit more background? Is there a reason why only a subset of the annotated examples should be seen by two annotators?