I guess you haven't played Morrowind.... You had zero indication most of the time. They've told you to go east, look for some kind of a fort and head north until you find a fork in the road etc. I can't even imagine how we managed to play it at all. But that's why people loved it so much.
As for DAI. I don't have problems with the landscapes because that's how open world games are. People wanted a huge world after and now they complain that it's too big.
Oh I have played Morrowind. A LOT.
but:
1. Morrowinds jump system/controls were very simple and solid. I did not struggle such going places as I do in DA:I. Morrowind also had all kinds of jump boosts, slowfall and not forgetting "Levitation".
2. The world of Morrowind was designed much much more user friendly with clearly marked roads, ramps etc. It also had quite good map informations(or maybe that was a mod thing, been a long time).
3. As Darkly already pointed out, TES games are dramatically different to what anyone should expect from a DA game. In TES games you are left on your own to explore and exploration is REALLY put in focus. It is great and it is rewarding and the landscape/terrain and the whole game is designed around it. You can just walk from one place to another without any issues. In DA:I not so much. Areas are in reality devided up by cliffs, chasms, water and some times invisible walls. If you don't spot that single tiny ramp leading from one sub area to another, you can be stuck for a long time looking for it/trying to jump your way to it/going around(and did I mention the fricking respawn??)...
And I just dont know who these "people" are who wanted an open world. I have for years just been yearning for another game with great story, and I wouldn't give a damn if it was in the old DA:O engine(which was and still is awesome).