I'm honestly a bit baffled at the lack of thought here.

Anything written can be listened to with this tech. Any news article, any short story, a draft of a piece of writing you're working on. There is too much text for human beings to read it all.

Translating from one medium to another is extremely useful.

Stop being lazy

It is faster to read than to listen to something

Not for everybody, also it would be great to consume textual content in a variety of voices, or even my own.

I'm not going to read while driving.

TTS with natural inflection opens up a world of narration to stories with audiences too small for human narration.

That's just ridiculous. I read and listen to stuff. I listen when I'm walking my dog, driving places, cooking, etc. I read when I'm sitting in bed or just sitting around with a book. Different scenarios call for different mediums.

Some of us have processing disorders. I can listen about 3x as fast as I can read.