I guess I see this as making it easier for people to generate files to put on their ipod or for those with a limited ability to read who might not have figured out more complicated solutions. Those who are blind have likely already figured out good solutions. It is those of us who are sighted that need the help.
I know that I personally would find such a button helpful. But through a great many steps I could likely figure out a work around. People prefer stuff that is simple.