Just listen to actual audio books... literally doing double the work for no benefit... why?
Having said that I absolutely hate the audio format, I only used it when I had to drive or when I swam lanes. But these days I do neither.
Ps I don't mean the word 'manipulation' in a negative context.
We all have the same amount of time on this Earth, saying how great a tool is that is causing you to do more work is just... weird?
I'd personally never do this, I value my time.
For example, I can give it 8 papers on best practices in online marketing, it will turn it into a 20 minute podcast.
There are errors, but also with real podcasters.