True it was discuss, in several threads now. But it wasn’t really in the release notes or website or newsletter … so a little sympathetic here.
I ran into same thing a while back on hAPax3 – took me half-hour to figure out the password in a drawer on ax3. Not disagreeing with the idea of having a password, but the rollout could have been better.
See http://forum.mikrotik.com/t/something-needs-to-be-done-about-the-default-passwords/166081/1