This is a very common complaint about Lua and i really don't understand it. I get that it's weird but is it hard to remember it while you're programming or something? I never run into it much anyway but I guess it depends on what kind of code you're writing.

I think there's a lot more to language choices than syntax and weird behaviors like that, it's more about how you run/implement the language and the ecosystem and things like that. Think about when people say javascript is a bad language because if you add together two empty arrays you get the number 0 or something. Or think about how you might be annoyed if you had to use a desktop app written in PHP (yes people do this) because the author likes PHP..