I only got through half the video. Meh. I respect Murs tho, at least it wasn't Justin Hunt...
There is no defacto time requirement to determine a classic album, in any genre. All that is for sure is that some amount of time has to pass to determine the impact of an album on the genre...but there are multiple examples of albums having immediate impact and immediate importance/acclaim. Did it take ten years to figure out Paid In Full was a classic album? What about Illmatic? Did it take rap critics/fans/gatekeepers until 2004 to determine that yes, Illmatic was indeed classic? Of course not. The point being that every genre of music features seminal works that were immediately hailed as classic. And every genre of music features seminal works that took time to be hailed as classic. It just depends...
I'd say there are quite a few classic albums from the last decade. But I'll just focus on three.
808s And Heartbreaks is an obvious choice. I don't like the album, but it's impact on rap and urban music in general is pretty undeniable at this point. How immediate was the reaction at the time? I remember mixed reviews: rappity rap fans being indifferent, and other people being blown away by the album. Today, the dominant sound of rap/urban music revolves around melody and 808s. Let us not forget that less than a year later Jay-Z released DOA. In hindsight it's VERY clear who was right and who was wrong. Autotune remains a dominant feature of urban music and continues to evolve.
Good Kid Maad City was immediately hailed as a classic by many based on the quality of the album, but what was its impact on rap? You could argue that it spearheaded a revival of west coast urban music. You could argue it revived the concept album in mainstream rap. On the flip side, you could argue that, nearly ten years later, rap is moving in the exact opposite direction of Kendrick Lamar - ie away from the album format and moreso towards singles, hits, etc; albums are little more than vehicles for streaming platforms now. I've wanted to make a thread about this for awhile. I think GKMC is a classic, but this is an interesting debate.
BTW, I think it's a lot easier to argue that To Pimp A Butterfly is not only a classic rap album, but one of the most impactful albums of the last decade. Its influence on music is pretty undeniable at this point. The revival of more conscious, instrumental driven black music was pretty clear (A Seat At the Table, Awaken My Love, Lemonade, etc). Black Messiah certainly deserves credit here too. But TPAB did something I would have never imaged: it essentially revived jazz music. Jazz musicians (many of whom were involved in the album's creation) are constantly getting festival spots now. Jazz sales have increased too.
Dirty Sprite 2 has had an undeniable impact on rap that is still felt. I'm not a big Future fan so I'd let someone else explain, but this is definitely an album where there its importance was pretty clear right away.