Earlier quoted context omitted.
This biggest offender creeping into my feeds currently seems to be long form history videos. I'll be 10 minutes into a 90 minute WWII video and notice a completely incorrect pronunciation of something and realize what is happening. They're certainly getting better at fooling us. Especially when they speak slowly with a calm voice.
if the content is sufficiently good, why does it matter that it is ai or not?
I think a correlating answer can be found in visual effects for movies. And the answer "depends". When it's poorly done, the scene feels off or unbelievable somehow. But when done well, people have an enjoyable experience.
This same conversation existed when moving from practical effects to digital. and in the end, audiences only cared about quality.