Just to add, it should be noted that 2019 was by far Greinke's best season at the plate. His career numbers are 0.225/0.263/0.337/0.600 with a career OPS+ of 61 and 9 stolen bases. And those are outstanding numbers for a pitcher (2 silver slugger awards).
While trying to take my mind off of world events, I did a quick calculation using data from b-ref for 2019:
NL pitchers batting: 0.131/0.150/0.166/0.316, 4 HR, 9 SB and 4 CS, with a 14.1:1 K:BB ratio in 4850 plate appearances.
AL pitchers batting: 0.111/0.146/0.140/0.286, 1 HR (Jared Walsh*), 0 SB and 1 CS (Greinke) with a 11:1 K:BB ratio in 417 plate appearances.
I put a * next to Jared Walsh as he hit his HR as a pinch hitter (for the catcher, no less).
MLB catchers batting: 0.235/0.313/0.403/0.715, 765 HR, 72 SB and 31 CS, with a 2.9:1 K:BB ratio in 21,828 plate appearances.
It's much easier to watch catchers at the plate than pitchers.