But that isn't the point here. The material IS available in any format you want. The argument was that a device for accessing some limited learning material in a particular format wasn't suitable. That material was STILL available to blind people - just not through THIS device.
The earlier - entirely valid - point was "what is the difference between a kindle DEVICE and a book?". If you separate the physical book from its content the two are identical. So why not sue because books aren't accessible?