For login purposes, it is indeed good to use hashes, this prevents timing attacks and the like. But I fail to see the harm in keeping encrypted passwords for admin purposes. It is very helpful in certain situations.
If it's stored in the same place as the encrypted password, then you have gained no security over storing it in plain text.
If it's stored in a separate system, then you have substantially increased the complexity of the system, and in general, a more complex system is harder to implement securely.