Why do you play RPGs?
What is it you get out of an RPG you don't gt from another genre?
What about a Bethesda RPG do you like?
It's not actually a rpg-typ of thing. I just want a good story (in a well-thought out universe) with proper gameplay mechanics. The feeling of being the protagonist and the environment should be consistent and logical (which doesn't mean fantasy isn't allowed.
It's much more difficult for an open world game (escpecially with a linear MQ) than a linear game to create this feeling.
Edit: Just take Skyrim as an example (I never played completly, I'm going to wait for the addon/dlc and some nice mods).
Because of the open world, Skyrim lacks detail and a consistent, logical universe /canon (it's not as bad as it sounds like, but this is very important for me). Skyrim's population is like at maximum 1000. The cities are way too small. Everything is too small. The great battles are more like skirmishes (maximum 30 persons fighting). If you attack castles for your factions, npcs will (re-)spawn in random locations. Dialoge options with no choices. The only options to influence the world are ...
...
Factions & Guilds, I guess? But not really, you can become grandmaster of every faction and nothing will change.
The items are still so generic. The special artefacts are just enchanted stuff. You just collect them, because they have names. I don't really think it's because the game becomes more "causal" (that is a different problem). Oblivion had the same problem.