i don’t get the “obi-wan should never refer to R2 by name”. honestly, it doesn’t change anything, because they’re still in the very same room and Anakin calls him by his name so… it just seems a bit pointless to me.
It’s an effort to reconcile Obi-Wan not “recognizing” R2 in ANH, when his actions in ANH can just as easily be interpreted as either Obi-Wan teasing R2 or just simply not caring about droids all that much.