From a pure quality stand point not sure what the fuss is about, its a good verse just not as insane as the hype would lead u to believe. But based on the state of the game in this world of social media it did what is was supposed to and shook out some cobwebs the game. Anyone with any kinda feelings towards him will be exposed that's one thing. Another is just the buzz it creates for him, keeping his name out there with the albums months old now. Lastly it'll wake some people out of their slumber.
Not sure if this joint was even really supposed to be released but Sean kinda screwed himself, Kendrick just made more buzz for himself in a throwaway track than Sean will receive for his album.