Comment by perrygeo

For one, I don't like the Lua language. This is just my opinion but I dislike the syntax and semantics. It's better than vimscript for configuring neovim but that's a pretty low bar.

And if the argument is "pick a long-supported standard as an embedded language" then I'd rather go with Lisp (e.g. https://github.com/mattwparas/steel). Historically, Lua is the fun hobby project newcomer.