Cool, so I'm going to dodge the IC stuff, because without being there the best I can assume is he said/she said, and I jump over to a word, hopefully of wisdom, for both the coupers and Jaden.
New leaders tend to struggle with communication, it's not at all an uncommon occurrence, even some of the major AA's leaders occasionally struggle with communication, it's par and course for the role, as it's generally the first time the player doesn't have to answer to someone, and has access to information that they can't always pass along. So you're jumped from your casual life in Orbis into a role where you're both more free, and far more restricted in other senses, and it takes a while to get used to that. Even beyond that, you're hoisted into a position where, you care about the success or failure of what you built, which is a heavy weight on its own. Reading past this posts direct words, and Jadens frustration should show first hand how much he cared to see the AA succeed.
Generally, if you address that to your leader when you notice it, it improves them as both a leader and a person. That said, I don't think your coup was remotely in the benefit of the alliance, Jaden, or yourselves if you remotely care for the AA. Stability is what allows young AAs to succeed, coups, especially once the former leader declares it illegitimate publicly like this, are the antithesis of stability and typically lead to downward paths, especially if the claim is 'lack of communication', because it shows that the situation hasn't improved, only the one at the helm changed, and is likely to lead to future coups or increased central power from paranoia of coups. In the future, I would advise you to communicate better with your leader.
Good luck though 👍
Closing note: Thanks to everyone who checked in to make sure Jaden was okay ❤️