JustPlaneMad,
I would agree that your take is correct for this particular example.
If however, there was another restricted area above (based at 2,500) and it was also active, and controlled by the same authority, then no, you would not be able to fly through at A025.
But if the controlling authority was different, I believe you would be able to fly through at A025.
I don't believe the above is documented anywhere in the current procedures. I remember reading this from somewhere years ago.