Transformer models making screen readers better is cool. Companies deciding to fire their human voice actors and replacing all audiobooks with slop is decidedly not cool.
You can really see this happening in translation right now. Companies left and right are firing human translators and replacing their work with slop, and it's a huge step down in quality because AI simply cannot do the previous level of quality. (Mr Chad Gippity isn't going to maintain puns or add notes for references that the new audience won't catch.)
And that's in a market where there is commercial pressure to have quality work. Sloppy AI translations are already hurting sales.
In accessibility, it's a legal checkbox. Companies broadly do not care. It's already nearly impossible to get people to do things like use proper aria metadata. "We're a startup, we gotta go fast, ain't got no time for that".
AI is already being used to provide a legally-sufficient but practically garbage level of accessibility. This is bad.