The games industry isn't nobody, that is how Lua got its fame, being a common scripting language, before Unreal and Unity became the only two engines most people know about.

Lua has been around for ages. I've never heard of CEL before today.

Lua is in the running for most-used language, second only to, possibly, JavaScript.

Few people write just Lua (although professionally speaking, that was me for several years) but many people write some Lua. It adds up.