Vim started in 1991. I don't know when VimL became a thing, but there's a serious possibility that Lua wasn't a great option at the time, and the only establish

Vim started in 1991. I don't know when VimL became a thing, but there's a serious possibility that Lua wasn't a great option at the time, and the only established embeddable language might have been some lisp or Tcl. I am not super versed in this area though.