Part of the problem for example is the story swings between "good" and "great" only if you are on a particular path.
The corpo path for example is a bad one:
1. in the intro you litearlly do nothing, you only hear an NPC explain a mission to you, and right after that mission is cancelled and you are thrown in the game proper, you literally do nothing except hear people talking about stuff that later is completely irrelevant in the rest of the game.
2. The main quest seemly assumes you are a street kid, your character talk with street kid slang and all, the few times you can talk as if you were corpo, not only the character style of talking changes, even the volume changes, it is very jarring, whenever you click on the corpo option the character personality, talking style and the volume of the recording of his voice actor changes.
3. Some parts of 2, ditto for nomads, for example if you are playing as nomad, and do a certain nomad sidequest, they say "you don't understand our issues, you are not a nomad", because obviously they assume you are on the streetkid path.
4. It is easy to get lost in the story because of bugs, for example many people got quests totally derailed because they skipped triggers of the scripts or something else broke entirely, and also many people got confused because critical information on dialogue was missed because the constant phoen calls about gigs and delamain cars can play on top and hide the critical dialogue.
So even though one specific path of the game, seemly has good story, even then people can feel like the story is crap because the game sabotages itself.