Above all, do no harm.
I am opposed because I fear my ingrained habits would thrown me under a train. The del key is not the backspace key, by the way. The differences between the ways these keys work, or not, seems like a theological argument.
Forgive me for not answering each point. I am pretty strongly opposed.
I am a mostly non-programmer, for whom Emacs is an underpinning of my work style.
Alan Davis