I'm going to say the same thing I always say when it comes to E2EE.
E2EE does not mean anything in a world where both ends are owned by the transport layer.
I'm not saying they're doing anything wrong, you could be mistaken and information can be exfiltrated some other way.
But: Either you trust the transport layer or you don't. Saying "E2EE means the transport doesn't have to be trusted" while running a neigh impossible to reverse engineer binary on both ends distrubuted by the network --- *is* trusting the network.
E2EE does not mean anything in a world where both ends are owned by the transport layer.
I'm not saying they're doing anything wrong, you could be mistaken and information can be exfiltrated some other way.
But: Either you trust the transport layer or you don't. Saying "E2EE means the transport doesn't have to be trusted" while running a neigh impossible to reverse engineer binary on both ends distrubuted by the network --- *is* trusting the network.