The biggest problem with TES writing is that it half-expects you to know more than most fans do. For example, The Mythic Dawn is less cliche when you realize they are just reflecting Altmer, Bosmer, and Redguard views, just with a pro-Lorkhan, pro-Daedra, anti-Aedra light.
The reason TES lore is superior to most games is its sheer vastness, not its above-average quality
It's the opposite. A great deal of video game fantasy has more lore than TES, just crap lore. Warcraft (for example) has a lot more, it's just usually a god corrupting a good guy, who goes insane. No culture, no religion (other than the poorly defined "light" or Elune, WoW actually changed orc religion into something different, and more boring), nothing. TES has creation myths, political factions, gods, myths, culture, ect.
Lore is not something that gets better as it gets more.
As I said, TES always hides the good stuff (though Alduin being the main villain might change that). Or removes it, as seen in
Oblivion's Cyrodiil.