Yes, I think that consumer-level state-of-the-art speech synthesis is still pretty far from acceptable. Amazon Polly doesn't sounds too great and presumably that should have more than enough big data to leverage and cloud computign to work with.

https://aws.amazon.com/polly/ https://www.youtube.com/watch?v=00D0YZ9GQX4

Either we're just not there yet technologically (hard to believe), or there isn't a will to make good speech synthesis available to commoners.