Voiced protagonist+dialogue options are probably two of the best improvements in my eyes.
Games where you feel like you're having one way monologues aren't as exciting to me.
I mean you have a point. But text dialogue also allows for more choice. And in Fallout, those choices often led to unique situations. A lot of voiced dialogue settles on "general feeling" options or "good and bad" simplified mechanics. Not saying that is the case here, and I agree with your one way monologue criticism, but I equally hate when voice dialogue options become limited, and the choices I make don't represent what the voice actor actually says. That can be just as frustrating.
They have to walk that line of a character being scripted (their personality), and having extensive choices that the voiced dialogue can say. I just hope the writing for this game is on point. That if the dialogue is going to be cleaned up and not as extensive as the text dialogue before, that the choices are really well written and the dialogue options can still lead to unique situations playing out.
Also while I get that text dialogue can be cluttered and voice acting can make your game more cinematic (it can make your character come to life as opposed to how dead text can feel), I think that's kind of a big aspect of "role playing". You are your character. And all that text, allows you to choose who you want to be. I feel voiced dialogue kind of takes that away (not always), and they kind of decide for you the personality and actions of your character. Again, not always, it depends. I personally loved the text dialogue in Fallout games. I always felt immersed in the games and like I was actually my character.
With games like Mass Effect, your Shepard is largely a pre-designed character. You can make choices that impact their personality. But it's still a pre-designed character. With Fallout, your character is a blank slate and you play as them, and make them what you want them to be. I find that is harder to do with voiced dialogue.