Perhaps it implied that.
But it only ever implied that, and meanwhile we had other evidence that implied a separate conclusion, in the form of Kor, Kang, and Koloth.
Which is more likely-- that every Klingon Kirk encountered during his five-year mission was a survivor of the augment virus (edit: Including Kahless, who lived and died centuries before Archer!) and no Klingon encountered outside of that time period was; or that the Klingons ruthlessly quarantined or even executed carriers of the augment virus and wiped it out before it got too far, and TOS's visuals aren't literal?
And even it's nakedly racist ("A contract, is a contract, is a contract-- but only between Ferengi") and misogynistic ("Females and finances don't mix.")
What does that say about capitalism?