Just tried it. You need to enable Accessibility for the app in order for it to work.
What other access do you get when getting the Accessibility credentials from the system?
What other access do you get when getting the Accessibility credentials from the system?
For the Android versions below 4.3, this is the only way to have access to the notifications. There is a much nicer (for the concerned user too) way to access them in 4.3+.