It’s not “oh wow” but that’s his MLB career against lefties. I’d use a larger sample, but that’s it at the big league level. 122 PAs and .549 OPS. Reds also have his minor league numbers, they see him in practice, they made their decision. Winker plays sparingly against lefties.
I’d guess if it was .849 in 122 PAs he’d be playing more against lefties.