Okay, so it's possible the single state office that issues them changed the form at some point. I don't see why you think it's such a big deal.
However, I do think it is a big deal if a state has a lax procedure for securing its official documents, including layouts, formats, etc. They need a better change control process if new terminology can make its way to a form without being defined somewhere for reference, otherwise, what are the recipients to make of it? How is a registrar in another state (or someone utilizing the document as evidence supposed to interpret the same form with different wordings, without a reference to guide them?
-PJ