Game Mechanics: Mistmoore pathing not as it was in live

[Donwald]

During live there were a number of pathing issues in Mistmoore that were part of what made the zone what it was, trains were common and people were often able to take advantage of a number of them if they knew how. I bring this up because I just attempted to solo the jail where pathing was so bad that none of the mobs could leave their spawns only to discover that it has been changed from live. Is this a bug or a feature? If I tried killing mobs in locations in other zones that they couldn't reach would I find the same? As far as I know none of this was considered exploiting during live, or at least during the time that I played.