I disagree with the approach. It's a good approach for limited domain problems, but not for general purpose. Take something like this where you will need to be able to refer to wikis and research and ask questions on Reddit and Discord to optimize playthrough, none of the goal conditioning will be useful.
https://www.feed-the-beast.com/modpacks/125-ftb-evolution
I think a properly fine-tuned VLA with access to tool calls can scale way better.