[GAMEPLAY] Shen's Spirit's Refuge doesn't block Azir sand soldier basic attacks

When standing within Shen's Spirit's Refuge zone, the basic attacks of Azir's sand soldiers are not blocked. To recreate:

1. Activate Spirit's Refuge by standing within the zone.
2. Be attacked by a nearby sand soldier.
3. Take tons of damage.

There seem to be two perspectives at play.

1. Azir's sand soldiers are spawned by a spell and scale damage according to AP, and Shen cannot block spells, so it's working correctly.
2. Azir's sand soldiers are controlled by Azir's basic attacks and only do damage when he commands them to, so Shen should be able to block them and this is a bug.

This seems to be a weird case where the champion's auto attacks are treated differently since they do not originate from the champion's actual location. My feeling is that Shen should be able to block these attacks; from a role-playing perspective, you could say he parries the sand soldier's attacks as if they were any other melee champion. I would treat this as a bug, and I'd love some clarification.

EDIT: Added "step-by-step" to adhere to bug report guidelines.