Does Leona Determined's ability to stun an enemy unit count as choosing/targeting for the purpose of triggering Deflect?

Ruling: Yes, Leona Determined's ability to stun an enemy unit does choose/target for the purpose of Deflect. Charm also triggers Deflect.

Nuances:

• The rule that uses 'Kill a unit' as an example for targeting applies to similar effects like 'stun an enemy unit'