Suarez has 16 goals and 2 assists in 21 games with AM as a CF.
Griezmann has 12 goals and 6 assists in 26 games with Barca as a CF, LW, AM.
Are Suarez stats better? Yes, of course. Are Griezmann's stats complete shit compared to Suarez? No.
That being said, I doubt Suarez was ever criticized...