I must respectfully disagree. I agree that access to a member’s email address should require some effort and the action should be logged. But to make it completely unavailable regardless of circumstance can severely limit a moderators ability to make a fair judgement call.
Until such time that Screened Email Levenshtein does a better job, if anything is done in this area it should have a setting for those Admins that don’t want to handle moderation duties.