I am trying to help with vis and it is a lot of fun to use. Aside from things where I really need neovim (because of large plugins), I use vis every day. Sam and ACME (and whole Plan9 for that matter) have the biggest problem with being too GUI oriented. They are from times when we discovered a mouse and then decided we need to use it for everything. Thirty years down the line we know better: we don’t.