I know he was. I loved Heyward and I miss watching him play (at least defensively).
His offense was always a little frustrating to me, outside of his rookie year & 2012. He's only 28 so he could still rebound, but it's very possible he's finished as a productive offensive player. His WAR was usually up there for his defense, and maybe WAR is right, but I'm not sure.
I hope and think Acuna will be more consistent offensively and for a longer period of time.