They had the low level dungeon length / challenge just right in Beta-P3. Easy enough for new players but enough difficulty to push people into learning things, which is I thought the whole point of those level dungeons etc. I think they made the mistake of assuming that difficulty is frustrating so they removed a lot of it, but difficulty can also be fun and that is the element which has been stripped away in the final versions of Tam Tara, To To Rak, Hauk Mannor etc.