FWIW Retr0id is one of the big community bluesky/AT protocol developers and importantly the person who more or less figured this out (or at the very least brought it to the community's attention).

Point being that they were just clarifying the situation as they are probably one of the most informed people on the situation (with the other reply in this subthread being a first party bluesky dev and therefore one of the other SMEs on the topic).