you'd think Amazon would have to at least pay lip service to accessibility, at the scale of that company. it's infuriating that they don't seem to care.
The Alexa app is great for having books read aloud. But many dyslexic readers don't want TTS — they want to read visually. And the app does have some accessibility settings (or rather, usability settings that are particularly helpful for dyslexic readers).
But there are many other types of assistive technologies out there, including some that are life-changing for all kinds of readers with disabilities. By making the platform inaccessible to browser extension, Amazon has created a situation where their in-house accessibility options are the only ones that can be used. For someone who has accumulated a library over a long period of time, on the understanding that the KCR supports browser extensions, it's pretty lousy to have the rug pulled out with no recourse.
There are some great people working on accessibility at Amazon, and I'm sure this is frustrating for them. But it's not unique that the accessibility team doesn't have as much power as another team — I see this at all sorts of companies, including pretty much all FAANG.