People are mentioning (not complaining) that it's not a replacement for vim/emacs because the discussion is on a web site largely frequented by software professionals. Toy tools are not well-regarded here, nor should they be.

It's like complaining on a site oriented towards construction workers to stop comparing something to pro-grade tools and just bask in the wonder of someone making a slightly better Craftsman ratchet. Cute idea and maybe worthwhile, but not especially relevant to professionals.