Austrian empire is not the same as the Hapsburg empire or the holy roman empire. The Austrian empire was formed after they got their asses handled to them by napoleon and lasted for 60 years.
That's a silly argument. That's like saying England only applies to England pre-Act of Union, even though it has a Ship of the Line as a UU. Plus, Austria's leader is Maria Theresa, a Hapsburg (the ruling family of the Austrian Empire, mind you, until the 20th century). Nomenclature is a silly means of distinguishing between successive empires, especially when the same dynasty remains in power.
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