The advantage of using Octane via Blender is that you way more flexibility while to Lua scripts are just tailored for a single animation type. They are nowhere near as flexible as using Blender. My guess is that at some point we'll have some pretty advanced scripts (for example, Jason is improving his script in every iteration) but I would be surprised if someone would come up with the same flexibility as you would expect from host apps. It's possible but it would require a huge amount of work...
cheers,
Thomas