Ah, we were talking about two different articles, sorry for the mixup. I was thinking of the Apostrophe Society article, which calls out "it's" vs. "its". Yes,

Ah, we were talking about two different articles, sorry for the mixup. I was thinking of the Apostrophe Society article, which calls out "it's" vs. "its". Yes, of course the use of "Decade's" is correct in the article title you're referring to.