A lot of it feels like someone who doesn’t like the old code and wants to do it “right.” I can agree that the old code is ugly. But it will take an awful lot of effort to make a new implementation. It’s a lot like what happened to Elvis: A rewrite was going to make it much better, but it took so long, during which Vim added more features, that eventually there are not so many Elvis users. And the rewritten Elvis may have nice code, but users don’t notice that.