https://mobile.twitter.com/steven_aquino/status/1136059652771201024
Also if there are "10 small switches and you can never touch the right one", then the developer of this app failed miserably.
It will be a nice feature that anyone can use, handicapped or not. Good news is that it is optional so if you don't like it, you don't have to use it. It's a great option for when using a h/w keyboard.