That’s not what A1 says: Please read WP:A1. It says nothing about “below stub-class” (whatever that may mean). WP:Stub deals at length with what may be too much for stub class, but so far as I can see, it says nothing about what may be too little. If you want to change the standard to include something about articles below stub-class, you should propose it at WP:CSD.
I will grant you that A7 may have appropriate for this article but not A1. — t c