When collaborating over ambiguous topics where the potential to be misunderstood is high, you need to use the "richest" communication channel possible. Body language, facial expression, and the fast feedback loop can help you quickly establish a sense of common ground.

On the other hand, status updates or sharing of metrics/information can easily be done asynchronously, because the potential to be misunderstood is low. It's also a more scalable approach and persists over time.