Chocobo Companion + Bind AI issues

Lately, my Chocobo (rank 11, Defender stance) has started to have some really bad issues where he will stop attacking the mob I put him on, which has cost me several maps to the same error. Today, I realized what was happening: When I cast Blizzard II on the same target my Chocobo is attacking, he stops attacking because he sees a breakable crowd control on its target.

Chocobos in Defender stance, especially ones with primary aggro, really shouldn't stop what they're doing to come give you a hug when you're fighting a mob with a massive frontal cone AoE. I'm hoping this is a bug, because if it's intentional, it's an even bigger hit to Defender viability than Choco Guard reducing their enmity generation.

I've noticed the similar behaviour with my lvl 11 chocobo in free stand - it's attacking a mob but once I use fluid aura on it it will run away from it back to me.