I checked the link of the post you mentioned, I could be wrong, I think you are right.
It does mention butler can go up to 32GB so you must be right. I’m not sure why I remembered there was a limit of 1GB on the web and 2GB on butler. I’ll check it again on the official documentation when I have the time to confirm.
I know that if you need any extra space, the best thing to do is to contact the support.