I like this system for few reason

first the AI is awesome step up for preview AI now could you apply the AI to the pets you have amazing pet system. only down side is struggle to perform AOE. second the healer npc can't raise yet this work in some way it help you learn the boss fight machinac a harsh punish for fail it but a good tool to teach the machinac.

if the trust AI was apply other NPC companion like Summoner Egi and chocobo companion this system would be very benfition to them.

I still think we have more companion option the chocobo is awesome but could also have dragonling companion which will help us fight and provide quests too