If using Lua is the primary factor in your technology choices, you may want to use Corona, Love, MOAI, or another high quality Lua-based game engine product.

That said, we went with LoomScript over Lua because we did not want to use a language where OOP is an idiom. And we support one development path because, in our opinion, it is the best option - and because, in our experience, great platforms choose a "right way" to do things and run with it.

You do get the full source code, so if it really bothered you it would not be hard to "fall back" to plain old Lua. But I think that would be overlooking a lot of benefits.