Do reflexive triggers like Falling Star or Icathian Rain trigger Dreaming Tree?

Ruling: Reflexive triggers do not trigger Dreaming Tree. Under current rules, reflexive triggers have spell damage attribution but not target attribution, which is required for Dreaming Tree.

Nuances:

• A designer confirmed this distinction wasn't intended, suggesting it may be Rules as Written but not Rules as Intended
• The ability has a controller (relevant for effects like Deflect), but the reflexive trigger itself is not a spell