It's not a fail at all. Directions given by NPCs, rumored to even vary depending on how much the NPC likes you, provide a clear alternative to the quest marker system. Complaints about past games have no bearing on Skyrim when it's already confirmed NPCs in Skyrim give directions. Besides, other comments suggest many of the quests in Morrowind had bad directions too.
Directions are not given by NPCs most of the time and thats a fact, even if they do like you its just not scripted in them. just play oblivion, try it, and see for yourself. ( I know it for a fact because i tried to get directions who werent there about zillion times)
Morrowind did have HARD directions, not bad. they were just written in high speech level so not everyone got hem straight. I mostly managed to make my way to the quest, and when i didn't it was purely because i missunderstood the directions, but its not like they tripped me.
Can you please link me to where you saw NPCs giving directions is confirmed?