Not quite. Azem 'defected' and the seat was left empty before the Convocation had reached a decision on Zodiark. Venat's followers tried to send word out to Azem, but received no response. The real question is: where is Azem during all this?

The circumstances around Azem's departure were considered to be so grave that the Convocation refused to commemorate them with a soul crystal, and Emet had to make one in secret. I don't think that's a simple disagreement about a decision. Even when Azem had gone against the Convocation previously, Azem was just censured. With the likes of Hyth, Elidibus, and Emet all as close friends in Azem's corner, it would have to be something serious for which there was no simple defense. Something like, say, being accused of seriously injuring or even killing a senior Convocation member, perhaps? This is why I think we won't have a satisfactory resolution to these questions for another eighteen months.