If you are like most people, ambiguity is extremely uncomfortable and is something to be avoided whenever possible. Most of us find the lack of definition and lack of boundaries associated with ambiguity a little scary so we attempt to get definitions and boundaries set as quickly as possible. This reduces our personal stress level but it may not result in an optimal solution or situation.
For other people, ambiguity is something that can be manipulated to avoid facing reality or to float through their career without accountability or deliverables. This sort of behavior is obviously unproductive and should be avoided.
For a third group of people, ambiguity is used as a productivity tool. They use ambiguity to help them consider all aspects, perspectives and components of an issue without being tied to any one viewpoint. They are able to objectively evaluate disparate positions or solutions without bias and select the best solution possible.