That's true if the application is entirely about visual layout, e.g. positioning and font sizes. But a blind user should still have an accessible way of control

That's true if the application is entirely about visual layout, e.g. positioning and font sizes. But a blind user should still have an accessible way of controlling the content and structure of a report. And you might be surprised at how much information about layout and formatting is accessible in word processors. Furthermore, now that this toolkit is available, companies will use it for applications that are required for job functions that ought to be perfectly accessible to blind people. An inaccessible application can lead to a blind person losing their job. Also, I mentioned other disabilities. A person that can see but has a severe mobility impairment should still be able to use this app.