My favorite utopia is Lua becoming mainstream and killing JS. But I agree with you that one of the reasons Lua is so nice is exactly because that didn't happen, so it's a tough choice. This is precisely the reason why many members of the community refuse to treat it as a general purpose language and keep enforcing it as a niche because they're trying to protect their special snowflake. I do think Lua is growing faster outside the embedded systems & games niches now, with Torch for machine learning and OpenResty for the web. I'm very excited and I hope this growth gets more support! We need more people pushing for this :D