I don’t think it’s necessary to show them “decoding” the message since it doesn’t really add anything to the next scene, on the contrary it kinda drags it out unnecessarily. I think the original idea just flows better from an editing perspective, what’s the message? Answer: You hear the message. It just feels more dramatic to hear Palpatine’s leaked discussion along with the rest of the resistance for the first time.
I only extended it out, because I felt like it really distracted over the conference/meeting scene.