It's not my all time best, but it's still very high on the list, and I could see why someone would feel like it:
-The music, musicianship and musical composition is outstanding
-It's one of the most acclaimed albums, ever, and the most critically acclaimed album in rap alone
-It influenced the likes of Beyonce, Herbie Hancock, George Clinton, Chuck D, David Bowie, and even prince according to one of his producers
-It had a massive impact on west coast jazz resurgence.
-One of the songs is considered as the BLM anthem
It has many arguments, outside of the actual music that has been praised by musicians and artists through the years.
It wasn't just as commercially successful as DAMN, but that wasn't really radio friendly either.