As they should be! I do not know why they are not already, but as I said recruiters can't seem to stop asking for them. But be assured that I won't mourn them once they are gone, and if ChatGPT gets us there faster then I am grateful for it.

Edit: on second thought, I believe "Editing ChatGPT output" might be a valuable job skill in the future, and maybe a good cover letter would give recruiters some signals in that way.

Cover letters already are meaningless.

Win-win!