Yes. It's limited in the sense that it is political rather than constitutional.
Nothing in the Standing Orders can override the Prime Minister's right to advise the Governor General. It's the same as with fixed election dates. Even though it's legislative, it says right there in the act—I am obviously paraphrasing—that nothing overrides a Governor General's decision to dissolve Parliament on the advice of the Prime Minister, so these things are not going to supersede the Constitution.