For me, the value of receiving comms from a human is different: it communicates not just the idea itself, but the fact that the human already understands the idea.
The people arguing that round-tripping their thoughts through AI still means that it's their thoughts apparently also believe that the game of telephone always results in perfect comms.
It's not just AI; adding more hops to a route changes the message when each hop is a human too, it's just that we notice it more when the hop is an LLM because of just how different they write compared to humans.