>>23592504
This is only kinda hinted at in a later event and they'll never expand on it now, but I'm pretty sure Kanadeverse Adam was abandoned by the Annunaki even earlier than the prime one was, and fears them less because of it. He had some lines about how he was "lacking a purpose" and had to find his own, and the premise of the golden memories event is that a shapeshifter impersonates an Annunaki to give Adam orders he is incapable of rejecting.

In the Symphogear 4.5 flashback Enki already lists prime Adam as a failure in a conversation with Fine, because he instantly went full Skynet on everything less perfect than him when they put him into action.