Hello Dennis,
Making our programs more accessible has been a long-time goal and we’re making small (but important) gains with each new release. System Ninja is the most difficult to adapt, because the user interface components used were developed by a third party.
As you noticed, the core functionality of the program (removing junk files) is largely accessible. With limited development resources, I can’t guarantee that every feature will soon be perfectly accessible – but we are aiming to do a lot better.