Yes agreed. This was a heavily used feature by the CEO of one of our clients who is not a technically inclined person. Perfect use case is the following: He's on vacation and wants to call in to check his voicemail because he does not take his laptop on vacation, nor does he own a smart phone. He listens to his voicemail, and wants to forward it with a message/instructions to someone in the company that can respond to the voicemail.
In this use case, forwarding an email voicemail is not a solution.