Well, for starters, I think it's wrong to criticise LLMs with ‘it can't do that’ (from what I understood from the first paragraph, this was Donald's criticism).
If it can, does it make a difference in relation to all the other problematic aspects of LLMs? Not for me.
You are right. However I believe that, after some time, beginner Elixir developers become intermediate Elixir developers and they get to used to having a little bit of Erlang here and there.