I mean, we never really think much but when you consider she has 7* Grammys (the same amount as Madonna and Taylor Swift), a tally more than other legends' totals like Whitney Houston's and Janet Jackson's 6, or Mariah Carey's and Lady Gaga's 5 awards, or Legend X's 4... Rihanna will undoubtedly score more in the future and may attain a double digit amount of accolades from the Grammys.
Some of her other peers are snubbed year after year (Britney only has 1, Katy Perry and Nicki Minaj have none, etc). All of this makes you realize the legendary feats and impact Rihanna has accomplished and established.
People dragged her for not being much of a songwriter, but it hasn't stopped the Academy from realizing her genius, distinctive voice and tone, and her impact in the music industry. So is Rihanna a "Grammy darling?"