What I think about AI voiceover. Well. Depends on a lot of things. AI currently gets negative criticism for ethical reasons, because for image creation AI is trained with images made by non consenting artists. From what I read about Replica AI to, they do pay their human AI teachers, so to speak (literally).
So, of course you should not hide the fact that the voices are computer generated. But you need not advertise it either. That is what the about and credits pages are for. Of course you could use it as a marketing ploy. But I for one would be disappointed, if you advetise with "fully voiced" and it turns out, it is not only AI, but most of the text ist unvoiced narrator... I remember being disappointed when some game boasted voice and it turned out just to be Renpy's text to speach feature that uses the tts from the operating system - of course a big plus for the hearing impaired, if a game actually is made with compability to those features in mind.
Compared to Windows's tts, your example lines were fantastic. Like the difference between bad pixel art and high res art. And it is a plus, that the voices for different characters sound different. I remember voice overs from video games 20+ years ago. That was not always done by actors, if you know what I mean.
So my verdict in quality is: Text-to-Speach, Voice Acting by non-actors, The AI stuff, Voice acting by actors, Voice acting by voice actors.
In general, I would prever voice. Lot's of it. But I also frequently hear audio books, so that is a personal preference. For something that might be turned off by the users, it should not be done with the biggest budget. I am sure , that AI voices are a big quality upgrade over text to speach, but it comes with it's own budget and additional work.
What irks me in these type of games is constraints on configuration, that have a negative impact on what is called quality of life (should read quality of gaming ;-). Like not being able to display the text at once, but being reduced to the slow reading speed the developer hard coded (I am a very quick reader). Also I recently played a game with no back functionality to read the text again, like a text log or an actual back button. Sound has its own qol features, like making it skipable or optional without disabling the music.