So, since the current issue is version 1, I guess that makes the Gold Monarchs "version 0"?
Alternately, they probably consider the Gold Monarchs as a different release, much like E's Gold Arcanes. If you bought the first or second or any edition of Arcane uncut sheets, unless it said "Gold Arcane" you'd assume it was either the black or the white, right? So perhaps T11 sees "Gold Monarchs" as a different product from "Monarchs".
It would have helped if they clarified the wording, but the photos clearly show the current-issue design and not the Gold design. I can't be the only person who spotted that.
Either way, it's an uncut sheet and a limited edition. It will become valuable to those who value such things.