None of the points that are made about Yelich's bat still being about average address the fact that other options have started to emerge. Yelich OPS'ing .700 is really not that big of a deal when your alternative options were Blake Perkins and Brandon Lockridge. We're deeper than that now, so the bar is higher.
The breakouts of Lara and Pratt are great for the team. They also are two more mouths that need to be fed. Eventually, you run out of room at the table if your performance isn't up to snuff.
The fact of the matter is that Yelich is a DH only player, and this hurts his standing considerably. If he were an average fielding 3rd baseman, he'd be playing every day and his bat would be no issue. The DH is the leftover after you've fielded your 8. This locks in Contreras, Turang, Pratt, Chourio, and Mitchell, plus two of Lara, Vaughn, and Bauers, plus one of Ortiz or Hamilton. That leaves one single spot in the lineup open for one of Yelich and whichever one of Lara, Vaughn and Bauers isn't in the field and whichever one of Ortiz and Hamilton isn't in the field.
This isn't even counting Sanchez, and when Frelick returns you still have another one to figure out. The fact of the matter is that a 95 OPS+ isn't good enough when this is the competition. And this is all assuming that they make NO other starting additions and that guys like Made and Fischer are still over 2 years away — big assumptions to make.
No one is saying Yelich is a disaster. He doesn't need to be a disaster to be benchable. He needs to be a worse option than 9 other players, and he is getting there.