The 6.x story was mid at best, but what made it feel awful was our companions through the whole thing. Vrtra/Zero/Y'shtola are the worst possible combination of characters to have together. All of them extremely bland characters, with only Zero managing to be somewhat interesting in the last hour of her screentime.

Y'shtola is a walking deus ex machina and has greatly outstayed her welcome. She seems to know literally everything, including things that are out of her field of expertise. Nothing in 6.x felt high stakes, exciting, or a mystery because you knew that Y'shtola would walk in with some groundbreaking technology that would save the day.