Okay, I can see the misunderstanding now!
The option is only used set when the post is created the very first time. After it has been saved once, the std option will be ignored.
I thought it would only be ignore when that specific option has been saved once.
I was creating a page and adding meta boxes one after another, while saving the post in between. Then when I added the select_advanced with the std option set, while the post had been saved before. In this case it is ignored.
That took me quite a while to understand correctly.