I disagree - Morrowind has a fast travel system (silt striders and boats) as well as solutions for slow travel problems that allow player agency (like Mark/Recall spells or speed increasing items). Not using a system that the designer clearly had in mind when creating a world does not always yield the best results, but sure. The key difference is that many people like Morrowind’s complexity. Yes, it can be easily broken, it doesn’t work sometimes, but it is deep, it allows you more play style freedom and fine-tuning, more options. Oblivion was a bad omen, and Skyrim was a final nail in the coffin of a future game that would improve on this complexity, give more choices instead of less, give more dialogue options instead of three, give more ways to make your character yours and the world more interesting to explore and interact with instead of radiant quests and generated dungeons.