#23 - Aug. 28, 2006, 11:30 p.m.
I believe you may be confusing dodge with parry. Melee attacks from behind, including backstab, can be dodged. It may seem odd that a target could dodge an attack from behind, but I assue you it is fully intended. The misunderstanding may also stem from old functionality, where attacks from behind could not be dodged. I believe that was changed before or very near to the release of the game. The talent and its text is sound.
To clarify (again?) melee attacks from behind can be dodged by mobs, as well being blocked and parried (resulting in a glancing blow). With the talent's placement in the combat tree it should be obvious that its use is intended in PvE situations.