The OP seriously thinks THIS is a good idea:
1. One reads all the options one could pick what to say.
2. Then one picks the option one likes best.
3. And NOW .... a "full voiced protagonist" repeats what we just have read ...
And unsurprisingly all the OP can muster as "reason" for this obviously completely stupid idea is "its the 21 century".
And all you can muster as a counter argument is "It's stupid"
Ignoring the facets that such a system can contain. Like, dynamic experiences.
For example;
When opting for one of the Barbarian intimidate options. Instead of just reading a line written in all caps and having the character make a frowny face and the other party simply responds to your silence with fear.
You instead select the option and your character, now fully voiced, acts it out. Your character is screaming at the other party and getting up in their face to intimidate them, and amid this, the other party is reacting in real time to your character. They will be getting defensive, trying to back off.
The latter creates a more immersive experience. Characters react to things in real time. Even if you know what your character will say due to reading it beforehand, the overall impact of the dialogue is more prominent. Characters can react to what you say AS your character says it, rather than after the fact. Your character feels more alive because they're actually saying things, not just staring silently at everyone.