Because sadly AAA games are produced on the basis of how they perform vs putting that same amount of money in the stock market, not whether they are good 😔
Maybe if he was in charge instead of Cyrodiil, Skyrim and (I assume) Hammerfell we could have gotten games set in the weirdest provinces like Black Marsh, Elsweyr or perhaps even Akavir.
He wrote a lot of Skyrim-centred stuff. There are a bunch of references to it in the game of the same name, and a good few other things clearly influenced, but his vision of Skyrim was pretty wild. Same goes for the stuff he wrote for Cyrodiil. Knights of the Nine was him
That's how I do it. The quests are a step above typical MMO fetch quests, but still aren't terribly deep or consequential as every player is the chosen one and nobody can wipe their own butt without the protagonist being there. It's adequate but not super compelling. Every dialog has two sentences, three response options, and each of those results is a two sentence response. Seeing some of the places reimagined is cool but also a little odd sometimes, like Vivec city.
One of the things that persistently annoys me about TES is Khajiit morphology - there are 17 different distinct physical makeups of Khajiit (based on the phases of the moons at their birth) ranging from able to be accidentally mistaken for men or mer to sentient housecat and the vast majority of them just...never appear in any given TES game. A TES game set in Elsweyr would have to care about that a lot more.
TES Online and Legends are the exceptions (and I think only in one expansion for TES Online). For a franchise that's been around since the early 90s with 5 main series games and multiple spinoffs.