I think the change thing is sort of like... if an autistic person has an idea of how something is SUPPOSED to be, then that's when it becomes a problem if it changes. But if you don't have an idea about what you think most things are supposed to be like, then why would they bother you, right? Some people have a lot more ideas of what things should be like than others. I have a FEW things that are supposed to be a certain way, but most things I don't care how they are, (even if I tend to do them the same a lot of the time just out of habit and efficiency) so I don't care if they change.
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"You gotta keep making decisions, even if they're wrong decisions, you know. If you don't make decisions, you're stuffed."
- Joe Simpson