Frelick on the MLB roster anytime before the Super Two deadline is what doesn't make sense.
We'll open with Yelich, Taylor and Mitchell as the outfielders, and, yes, Winker will be the primary DH. But there won't be any other outfielders on the roster. Brosseau and Hiura would be the only other possibilities. So Winker will be playing in the outfield when one of those three needs a day off (Yelich's back). And, at some early point, either Mitchell will show he needs more seasoning (which means they'll bring up Perkins, who won't be starting) or, more likely, Taylor will show that he's just a fourth outfielder. And Winker will get more and more starts in the outfield.